It usually takes 3-7 days to get a reply in this folder.
In this folder, you will get replies from employees of MGMAT. If you want advice from other students in your area, I would suggest that you post your question in the Course Feedback section of the forums.
I used to work out of the Santa Clara site, so I'll give you my advice (but I'm biased of course!). We allow people to sit in on the first session of a class for free; it's called a Trial Class. This way, you can observe the facility and, more importantly, the instructor before you make up your mind. (Though please be aware that there is a limit to the class size; if the class sells out before the first session, then you will not be able to join that class.)
A Wednesday class starts next week; go here to read the instructor's bio (Tommy):
http://www.manhattangmat.com/gmat-tutor-wallach.cfmThere's also an upcoming Sunday class with Tim:
http://www.manhattangmat.com/gmat-prep-gmat-tutor-sanders.cfmAnd a Monday class with Ron:
http://www.manhattangmat.com/gmat-prep-instructor-purewal.cfmIf you'd like to sit in on any of these for free, just sign up. There's a link on each class page that says something like "attend the first session for free!" - just click on that link!