I purchased the twin mattress for a guest room.  Since it was for our lake house, I didn't want to spend a huge amount of money due to limited use.  This was perfect.  In fact, it is so nice and comfortable I am considering another one for our master bedroom.  Came promptly and well packaged.  I would recommend this.

Pros: Comfortable, timely delievery and well packaged.
Cons: Non that I can find.