Well, my daughter's only 3, but the times we've been there everyone has been very nice, and extremely helpful.
We did the Parent Tot classes last year and she had so much fun with it.
The only thing that's keeping us from enrolling her in their preschool is our finances; although I've heard they have one of the lowest tuition rates in the country.
If you have any other/more specific questions I'd be happy to try and answer them for you
I also know a few families with older children going there, so I can ask them things too