If you are looking for a place to board in Atlanta, I just wanted to mention Atlanta Dog Spa to you. Rory attends daycare there every day and could not be happier! It's cage free boarding and all day long they are in daycare while they board. It probably does fill up pretty quickly during the holidays though.
:• Atlanta Dog Spa •: dog boarding, daycare, grooming, training, kennel, Atlanta kennels
I can't say much about the Petsmart hotel since the Petsmart near me (Howell Mill) is horrible, but there is not a hotel at that particular location. I have seen the hotel near the Dunwoody Petsmart, and all the dogs always looked like they were having fun when they were out to play...