I am currently remodeling both bathrooms in my condo and selected this toilet for the master bathroom. It's a wonderful toilet, but there are some installation quirks. I'll get into that in a minute. Toilet design/materials: This toilet is beautiful and very well engineered. Very clean lines. There are two removable plastic back pieces on the toilet that are held on by magnets which can be removed to allow you to access the various filters and other components. The remote is also nicely designed (and removable) so you can hold it in your hands, though not sure why you'd ever want to. It's attached to the mounting bracket via magnets and is thin and lightweight. It has a built-in battery and charges itself from the AA batteries you put in the mounting bracket. It activates automatically when the toilet opens at full brightness and will dim after you have been seated for some time. A quick tap on the screen will bring it back to full brightness. The only downside I've encountered with the remote is that sometimes when the lid is open and I'm not seated, the display will turn completely off after a short delay and you can't just tap to wake it up, instead you have to push the small silver power button on the top edge of the remote. A minor inconvenience but it'd be nice if it would wake from sleep with a tap of the screen like any modern smartphone when the screen is turned off completely. I did see a review somewhere where it was mentioned that you can't lean back on the lid when seated and the reviewer expressed worry about possibly breaking it if they did so absent-mindedly. However, the toilet seat is shaped such that it angles you forward slightly and I can't ever imagine trying (or wanting) to lean back on the seat; you'd be at such a weird angle that it'd never be comfortable. I don't think this is something to worry about. Toilet flush/fill: Some reviews mentioned the flush being noisy which originally gave me some pause but it's really not that bad. This toilet has some serious jet-grade flush capability. It's not unlike one of those commercial toilets you'd find in an airport bathroom where you flush it and it's like the contents are sent to the cold vacuum of space. Absolutely excellent flush performance. The toilet has both eco and full flush modes. When doing a full flush, the toilet runs water around the bowl first and then two separate pressurized jets engage at the bottom of the bowl to forcefully evacuate the contents of the bowl. I'd be amazed if anybody could manage to clog this, and I say that as somebody who is no stranger to regularly clogging a toilet. Toilet water-line connection: This was something I was not prepared for and I was surprised none of the reviews I read made any mention of it. My previous toilet connected to a standard 1/2" to 3/8" water shut-off valve. This toilet ships with its own custom shut-off valve and braided steel hose (much larger than 3/8") and the valve has a screw off top on one side that has a filter inside it which you have to remove and clean periodically. The valve (picture attached) is actually very heavy, beautiful, and well-made. Much nicer looking than any valve you'd see in a plumbing aisle. But you will likely need to go buy a special fitting to hook it up to the water supply pipe. This is likely because different homes have different types of water supply lines, and since they needed the filter and thus had to supply a custom valve, they had to design a valve that could be retrofitted to play nice with whatever a given home might have. My water supply pipe was copper, 1/2" (pretty common) and the existing shut-off valve was a compression-type 1/2" valve with a 3/8" male out connection. The Kohler valve isn't compression, it's a screw-on 1/2" NPT female. So, to hook this up I had to go to the hardware store and get a 5/8" compression to 1/2" MIP fitting. I also had to buy a compression sleeve removal tool in order to remove the old valve from the pipe. Prior to this I'd never messed around with replacing a compression valve and learned how to do it after watching some videos online. With regard to the fitting, it would have been nice if they had included it since nearly everyone is going to need one in order to hook it up. Another thing to be aware of is that the supplied braided steel hose is rather short, so your supply line needs to be located pretty close to the toilet (mine was close but the hose was barely long enough to connect). If you're thinking about just using a different hose and skipping the custom valve, be warned the toilet won't function correctly if you do. It needs the additional water pressure and flow from the bigger valve to work correctly, and it's sensitive to contaminants in the water line which is why it has a filter built-in. I suspect this is the reason behind some of the reviews I've seen complaining about the bidet pressure or the toilet not flushing correctly. Don't skip this. The bidet: When it comes to the bidet, it does a very good job. You can control the temperature, wand position, and pressure via the remote, and there are also two massage options (and a third option which does both simultaneously) and a separate spiral option. The massage options I haven't found particularly useful (mostly just pulsating action) but the spiral option I use frequently as it widens the width of the spray and its coverage. You can have the massage functions and spiral wash activated all at the same time if you wish. The dryer has multiple temperature settings and can get quite hot, but I'd equate its adequacy to be reminiscent of those older-generation hand dryers in public bathrooms that take forever to dry your hands. You will not get 100% dry from this. One minor annoyance is the toilet is designed not to activate certain features when another feature has recently activated or is finishing up, and there's some buffer time coded into the programming after a feature has finished before it'll let you activate another one. An example would be if you flush the toilet and then immediately try to activate the bidet. You'll get a double-beep "you can't do that" tone and even after the flushing has completed it'll make you wait an additional 2-3 seconds before it'll actually let you activate the bidet. Cleaning: This toilet is marketed as having a "rimless" bowl, but it's more like it just has a different kind of rim. There are some nooks and crannies in here you'll have to work at getting inside with the toilet brush that make cleaning it slightly more laborious than a regular toilet. The toilet also does its fancy ionized water misting thing after flushing, at random intervals every few hours when not in use, and again when you are initially detected sitting on the seat. Jury is still out on if this feature (which is supposed to make things less likely to stick to the bowl and thus reduce cleaning necessity) actually makes any difference or not. In the few weeks I've been using it I've had to clean it with a brush on a few occasions. Overall, I'd give it 4.5/5 stars, taking off a half star for the water supply line drama. Would absolutely recommend and buy again.
