Pros
The children, if you love working with special needs children and assisting them to learn and want a family friendly work schedule (if you have school age children) it's good.
Cons
Tension in the classroom atmosphere, among other staff, making your day stressful and way to much drama from coworkers. Hire inexperienced staff and teachers to just fill the spots. Low pay even if you have 10 years experience. No staff support and they talk down to you (like you're a student). It's supposed to be all about the children and what's best- it's not.