Purchased for the top of a trundle in the guest room. 
So far so good! We just received the bed 2 days ago and so far it has fluffed up nicely, with still a day recommended for full fluffiness.  The bed is comfortable and firm, but not too firm.
4 stars instead of 5 because we haven't had enough time to truly evaluate. Will update review later after our first guest tests it out next month.