i've returned a few of the harbor freight/northern tool types.
burned out/failed/whatever. they work when they work.
got a porter cable (lightweight one), no problems yet.
of course, it doesn't get used much.
Microgel Radical MP (5), Cheap 16g Gut/ RedDevil 1.19 - 56/54# (among other setups)
Gamma 6004/WISE 2086