I was away for a month right after getting this, so it had literally weeks to puff up before i even tried it! Its pretty awesome. I like the sort of medium firmness of it. So far, Ive slept comfortably and its been over a week. The only things that can be improved upon are the edges are hard to sit on without feeling like youre sliding off (as others have said), and it definitely sleeps a little hot if youre in hotter weather . I hope a good mattress topper might help to alleviate that, but well see. Im worried about fitting sheets on with an added 3 mattress topper on it as well. As far as overall comfort, Im rather pleased with the level of support I get at night, and for the price love it.