Brought a TMars bout a year and a half ago just to see if I liked a dropper post or not. Didn’t want to invest a lot so read up on tinternet and went for a TMars. Its now in the second frame and nothings broke or been replaced but to be fair I might get some bushings(£15) for it soon.I do class myself as a fairly sympathetic rider though.
Bottem line is, if you don’t want to service and adjust on a regular basis don’t buy a TMars or similar as you will hate/break it.
Definatly worth it. Wouldn’t want to ride without a dropper post now but having just put a Thompson dropper on my GF’s bike..mmm nice.