I really decided to try this topper as an interim gap to purchasing a new mattress and box springs, and it has filled that role well. I don't know that we will use it for a long time, or if it will cause us necessarily cause us to buy a memory foam mattress when we do replace our current set, but we'll at least definitely consider it. We've found the topper to be very comfortable, and in fact enough so, that we purchased a second one for another bed in our home. The only "issues" at times are that it does make it more difficult to move around from one spot to another while in bed....and it does seem to drift off of the edge of bed after awhile. We ordered the king for our king size bed, but it is a little short compared to our mattress. We have not experienced any of the odor or heat problems we have seen mentioned in other reviews. We have had the toppers for several months now, and they seem to be holding up well.