I too own an MS200tt, and have had one for over a year now. Absolutely awesome.
Had small repairs done to it by Mark at Alpha, and the thing is dialed in perfectly again.
Firmly believe it is the stringer to own for a home stringer, and it can be used by a pro as well.
Please help TT Member BruceD get a wheelchair so he can play tennis again - http://tt.tennis-warehouse.com/showthread.php?t=496820