My daughter loves Green House! She loves her teachers and can't wait to tell me all about her day when I pick her up. The administration has their act together and is very responsive if I have a question. I also think they are very good about teaching academics in a fun and interesting way. Another big plus for me is that they are NAYEC accredited.
The only negative feedback I've heard from other parents is when they place their child in a class that was not age-appropriate. I know some parents think their kids are advanced for their age, but the school has different classes for different ages for a reason. Even a 6 month difference is a big deal for a 3 or 4 year old.