Having worked for Simply English for over two year...

Having worked for Simply English for over two years, I can profess how good of a company Simply English is. The management are excellent, very easy to get on with, and always willing to help out in any situation.
In regards to work, you'll work in a number of places. It depends on your schedule but you could have private clients, schools, kindergartens, adult classes or after school classes. The management try their very best to schedule people towards their strengths as a teacher and are always there to talk to if there is a problem. Mainly this works perfect, but sometimes the schedule can be unfair at times as adult classes predominantly cancel far more often than kindergartens, yet all the teachers will earn the same regardless of how many hours they worked during the work. It does all depend on your schedule, but its something I think the management could look into the future.
Part of your work will consist of using the metro a lot. The management pay for all transport costs which is greatly appreciated, but at times you can spend a long portion of your day just riding the metro to get to work. As someone new to Moscow, its good as it gives you time to adapt to Russia, learn how to read it, discover new areas but as a teacher who has been in Moscow a long time it gets tiresome quickly. Especially in the morning rush hour.
On the whole though, I'd recommend the company. They help you out as much as they can, its a great introduction to Russia, the clients/schools/kindergartens you work with are excellent, their are a lot of resources to use, and you get to meet a big range of teachers so you'll always have someone to hang out with on the weekends instead of being friendless