I don't think this is a mcdojo. The instructor has fought in mma several times, and is a legitimate purple belt under Marcello Chapuis Monteiro. It seems that you are having a really hard time deciding on a place to train. Here are some things to consider; What do you want to learn? What days of the week, and times of each day can you fit training into your schedule? How far are you willing to drive to train? How much are you willing to spend each month to train?
Now, for BJJ in SE Michigan, take a look at these websites:
www.warriorway.com
www.ukiyodojo.com
www.srjja.com
www.eastwestmartialarts.com
www.umich.edu/~armbar/
www.maunlimited.com
www.focusjj.tv
I don't have personal experience with these schools, but have heard good things about all of them. Find the ones that best fit with your goals, and schedule, and go check them out. Hope this helps.