Pros
It's fun to meet people's pets and you get a very good education pertaining to pets' health and management. If you are interested in pursuing a career with animals, this is a good place to start or to have on your resume while you pursue more serious options.
Cons
The pay is very low, especially considering how much associates are expected to know and do for their customers. There is very little chance of a promotion or a raise beyond 25 cents an hour. The most you will make here without a salary is about $15/hr. That's only if you become an assistant manager and there are very few openings. The stores are open 7 days a week, mostly 12 hours a day. You will have to give up your 9-5 schedule and be willing to work nights and weekends. Most full-time employees work 30-35 hours a week. Overtime is not an option.