I ordered two of these and before I could get the second one opened the dogs were already lying on the first one.  They didn't taking their time looking and sniffing around like they sometimes do with new beds or rugs.  They knew immediately that the beds were for them.  Our dogs are older and one has bad hip problems, she, in particular, loves the bed.

Pros: Good support for an arthritic dog.
Cons: None so far!