i like them very much, i also let ZeroG FPV (youtuber) fly this quad and he really liked them, i think they need the right props (currently using t-motor 5143) and on a heavier build they may perform differently. also on of them sounded a bit iffy when spun by hand out the box but after a couple of lupos it was fine, assume bakance mud or similar, anyway lots of packs through this now and absolutley love them

Very good. I'm building a quad if this motor and never saw it berofe buy. When I test it I'll tell you.

How about the durability of the motor?

i have had some pretty bad bangs and no issue so far. (i would have expected a bit of verticale play by now tbh but nothing). as above they seem to "run in", i.e. they actually improve over the first couple of packs. they use a screw rather than a c or e clip to retain the bell so in the event of verticle play tightening that may well solve, but nothing needed yet (i fly it on a daily basis), and i crash it on a similar time scale)