Overall it was great. I studied for 6 months mid November till May(ish). 2009-10. The quality is amazing. The teachers are employed by MGU, which is one of the most prestigious Uni's in Russia. You even get an MGU student ID and people are usually pretty impressed by that.

I had everyone in my class from 20 year old college kids doing a year abroad to 40 year old American businessmen trying to improve their Russian. Class sizes won't be bigger than 9 or 10 people and depending on your fluency level classes will be in either 50% to 100% Russian, but tailored for foreigners.

For the price, service, and experience you can't get any better in my opinion,