I take care of a bank of 4 smartrise traction cars, double wrap, 700fpm, had to replace 2 brake boards, all 4 cedes boards, an interlock board and update all the software, all within a year of the Maint contract we have, the mod was done in 2018, and the other company also replaced a few brake boards and cedes boards, I know that because they left them in the machine room marked “bad” there hydros aren’t bad, but anything involving a gearless machine, I got no faith in it, it’s a double edged sword, nobody can beat there price, so you have to put it in to get the jobs, but even the independent companies know they suck, I’ll take a 20yr old MCE IMC SCR over a C4 any day