Getting animals from pet stores is fine as long as the animals are alert, lively and you've seen them feeding/grooming etc. I would only ever get my pets from a garden centre near me that house animals, because I know all of their pets are well looked after, healthy and are in beautiful condition. I admit, Pets At Home aren't brilliant and many other pet stores don't care about their animals, they're just after money.

On that note... congrats on your new little girls Mark