Normally I wouldn't want to take my dog to a chain of stores such as Petco. My thinking is that they hire a lot of younger kids, who don't get that great of a pay and as a result couldn't give a shit about their jobs. I think my perception was wrong.
The staff at the Petco in the Mercer Mall, NJ has been nothing but nice every time I've shopped there. Mary (Mary Ellen?) has been grooming my dog for awhile now and he seems to like her. I think she's been giving him the best cuts he's ever had. He's been getting used to her more and I think he likes her too. I can mention Mary's name and haircut and he'll know where he's going.