We had one of these for a little while and for about a year or so it seemed to work quite nicely. I liked that the foam didn't seem to keep as much head in as a traditional mattress and it was able to breathe. I also liked that it didn't bounce around as much as a regular mattress so it was easier for me to sneak in and out of bed to run to the restroom. I hate moving around and waking my fiancé up at all hours of the night. The first year we had this, it retained its shape quite well. I didn't have any issues out of this whatsoever. I was always careful to rotate it and flip it every few months to keep it from losing it's shape and to keep it in better form. After having this for about a year, it still didn't transfer motion nearly as much as a spring mattress but I noticed that it would hold my shape where I slept and that the mattress was starting to indent a little. I was very unhappy with this. I called the company and they were quite rude with me. I figured this would last longer and not have indentions just from sleeping on it for a year but the customer service was not helpful. I just wanted a replacement mattress. I was going to even pay shipping costs but they accused me of not taking care of my mattress properly and a few other things. I liked it while it worked but when it started sinking in, I just wanted a new one because I didn't pay for a mattress that was going to wear out in a year. I was expecting a 10 year mattress because that's what I paid for. Comfort The first year we had it, it was great. It wasn't too fluffy and soft, but it wasn't firm either. I liked it. Support I liked this mattress before it started sinking in. After a year or so it started losing its shape but during the first year it worked great. It was soft but it was also firm at the same time. Firmness It isn't very firm but it's not soft and plush either. It was just the right amount of both. Durability I was expecting this mattress to last for a few years but after a year of making sure I flipped and turned it, it started to lose its shape and sink in.