I just quit MCH. I am going to be writing a review of it as well. In my opinion it is not a good game to get into unless you are prepared to fork out a ton of ether. After 8 months of me grinding with 6 teams, I barely progressed. That is with forking out about $300 in ether to 'start up'. Felt no progression. Frustrating. They made too many drastic changes that kept borking the system.
I might check out Knight Story based on your recommendation though.
Thanks!