I've owned this since the middle of 2012...let me just say I waited so long to write a review because I always check reviews before purchasing and I always wish to find that one person who has had something for more than a couple of weeks and still wishes to give it a good review. Also...lazy...I actually thought "I should do a review after having it 6 months to a year" and it's been close to three years. I've owned it for about 2.5 years....no regrets. I love the pots, they are my favorite part of it and what gets used the most. Sure they have gotten some discoloration from cooking...part of life, sorry folks. They clean easily even if you accidentally burn something in them, I know from experience. They have some of that rainbow discoloration from water. Not horribly though. That's mainly the inside, the outside basically looks like perfect stainless steel. There are some hard water circles/deposits. That's just part of life where I live. There are ways to remove it, so no huge concerns there. Now...my pots are well cared for. They do not stay dirty long after use. I scrub them with a sponge. I have never once attacked them with stainless steel wool or anything more rough than a sponge for cleaning, nor have I felt the need to. I assume that wouldn't cause you any issues with it, but no guarantees, as I have not tried it. Onwards - the skillets. At this time, 2.5 years of ownership down the road, I look at the skillets and feel they need to be replaced. The teflon(sp?) coating is starting to chip off. I recently bought some stainless steel skillets so I don't have to worry about teflon coating chipping off into my food. Don't get me wrong, these non-stick pans worked absolutely wonderfully for quite some time. But age has it's way with things and these two little guys have seen a lot of use. I now use the non-stick pans as little as possible due to the teflon chipping off, mainly for eggs, which I will probably eventually/soon replace them with new non-stick pans that I need not have concerns on chipping teflon for some time with. I love the little bowls with lids. Love them. I use them fairly regularly. My only complaint was that they do not have larger sizes. They have these three, and then I have two more that are progressively larger. I use the little one for dips, cheese balls, the like. I use the middle sized one the least. I use the bigger one for storing washed fruit, typically grapes or something similar...I have made a big batch of guacamole and put it in the bigger bowl with the lid, works great...I have never tested these plastic lids with something hot inside of the bowl. These aren't items I use daily, but I do use them regularly and love them. Lastly...the baking sheet/pan. The pan is truly non-stick. I remember early on after purchasing it I made super cheesy enchiladas in two pans. They got stuck in the other pan, and slid right out of this one. It is still nicely non-stick with few exceptions. It has some scratches along the edges due to unnamed persons using a fork to do things like get slices of cake out of the pan. And there is one mar in the very center of the pan where someone used a knife to slice something (I believe cake) in the pan and cut the coating of the pan. I watch this closely for signs of rust as I will feel the need to discard the pan should this occur. But other than some mishandling by various individuals, the baking pan has been great. The baking sheet...ehhhh...it's okay. It is my least favorite piece of the set. It pops when it gets hot in the oven. At least mine does. Like...you put it in as a flat baking sheet, and as it starts heating it pops and one end kind of twists slightly, leaving the pan no longer flat. I've actually had it pop/bend so hard/suddenly that it's done some food tossing...not all over my oven or anything, but definitely misplaced it from where it had been put. Also, in cleaning this, if you do not use a paper towel or something to dry the end of the handle (underneath where it's bent over/curled over to make a smooth handle to grab...it rusts. The water gets trapped in the little space and it rusts. I still use this piece, but I'm very ehh about it. Mine is very discolored/not very pretty anymore. Something got burnt on it and the elbow grease to scrub it off left the surface marred and removed some of the non-stick coating.