I shop there too for my dog. Good customer service.
Great customer service, they fell behind on Black Friday last year and my order wasn't shipped quickly enough, I called up and they cut my order price in 1/2. I also, just called up to see if they have a referral program, something I could get credit for if I posted this, they said no, and gave me 10% off my next order.
Always very friendly when I call.
Petco, Petsmart and pet stores in general are going to die a slow death due to sites like these.