Good
ZTTO Dropper Lever/Remote - Pretty much as good as it gets, smooth operation.
ZRace Blade Crankset - Very high quality, the cnc machining is top notch, steel axle/shaft is heavier then aluminium versions but it wont break in comparison.
ZTTO M1 boost wheel hubs - High quality finish, light weight. The 56t ratchet seems to hold up to my probably less abusive biking compared to other people or I was lucky with getting two ratchets that align/engage perfectly (which is very important in DT style ratchets).
Cooma and Delt brake pads - Various types, works great. There's better pads out there of course but waaaaaay more expensive.
Bad
ZTTO Chainring protector/guide - I did not like it, super flimsy plastic mounting points for the protector. The chain guide is probably fine tho, haven't used it.