I was the PP with 2 kids and I'd be happy to answer any specific questions.
All of the teachers have college degrees- there are no assistant teachers, all of the teachers are very qualified. They are also all very warm and quick to give us feedback. We have had experiences with all of the teachers. There is a full time art studio and full time art teacher. The kids rotate in there so there are only a couple of kids in there at a time (they also have art in the classroom). They do not do cut and paste type art. They are weaving and using wire and real clay. They are not just putting together something the teacher has already done for them. In the older class, they are studying animals right now and doing it in a very sophisticated way. They are learning to group the animals and my 4 year old speaks about "mammals", etc. Each child is writing a book about an animal that he chose. The teachers help them research the animal with the computer and reference book. They are learning to sketch what they see and writing, etc. The student/teacher ratio is excellent- for the fours/fives it is one/five kids. (again, all teachers, not assistants). For the twos, it is about the same or even less (one/three or four), though the threes are a little bigger- maybe one/six or seven kids.
I really like the curriculum- it seems very age appropriate. It is really a school and not a daycare. They engage in interesting activities every day, while still having free play time.