Using this in the guest room, and I think it's great! It didn't have a nasty smell as others have noted for other mattresses bought online. I think if you're super sensitive to smell that you might notice something, but honestly it's not bad at all. I'd say it filled out in about 2 days. Looks awesome! As others have mentioned this mattress is kind of soft around the edges and sinks in when you sit on the edges. I think this is a great short term mattress (if you're a college student or grad student) and great for the guest room if you don't have a lot of money to shell out on a second bed. It's super soft, but firmer in the middle. I  am thinking that next time I would buy the firm version of this bed. I typically sleep on a firm bed, but I was worried having not tried it in person that the firm would be too hard for my guests.  So far so good.