I have a 14 year old dog with many typical 14 year old dog medical problems..the worst of which is bad hips and stiffness in the joints of the front legs.  I purchased the mat because it looked  so comfortable, and the reviews sounded great for my Gracie.  The mat arrived in great shape, and my Gracie loves it.  Made extremely well, and so plush and comfortable.  She is still "breaking it in" but seems to really like it, she is using it more and more everyday,  sure to be a favorite!

Pros: Is made very well, cover is soft and plush, just the right amount of "give" for a dog with joint problems.
Cons: Non yet!