One month is 9000 Baht. This includes morning and afternoon professional session. Professional means that you work out with the fighters and is comparable to private class. There is someone with you nearly all the time and watches you. So if you want to work out on your own, this might not be the place. However, between morning and afternoon session you can use the gym at any time and hit the bags.
It is a safe area with a big University close to it. So you find many street food stands, student dorms and supermarkets. For me it seems a suburb for rather wealthy Thais. But there is no party or much other activities around. If you have more questions, feel free to write me a PN