I have 2 MMM ESCs still running and have broken 10. I have 3 Tekin ESCs and all are still running. It will be a while before I have the same run time on my Tekins, but as of right now the Tekin is a level above the MMM. The Tekin was trully designed by a CAR controller manufacture.
8ight-e 2.0 Tekin RX8, Tekin 1350kv motor, Losi 5s 4000mah, 45/15gear
8ightT-e 2.0 Tekin RX8, Tekin 1350kv motor, Losi 5s 4000mah, 50/14gear CarSports.com - RC Car setup website