bought 2 twins for our king size bed and one queen for guest bedroom. Well made top, fit is right on, so far has met my expectations for added level of cushioning.

Pros: No need to wash before using, no smell/odor (some I've bought were awful)
Cons: The mesh fabric used to secure pad to mattress isn't elastisized, so far it has stayed in place. The mesh ripped at one corner when I put it on the mattress, but not enouh to warrant sending it back however.