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.

About time I'd share my 947.

Size XL
Rockshox Super Deluxe Ultimate shock
SRS Durolux EQ 36 160mm fork
Shimano XT shifter & SLX derailleur
ZTTO Pro Ult cassette & chain
Shimano XT brake levers
TRP Slate T4 calipers
203mm floating rotors
Zrace billet cranks
Oneup pedals
Oneup V2 180mm dropper & ZTTO lever
Oneup Carbon bar & 35mm stem
Nukeproof Horizon race grips
Nukeproof Horizon enduro saddle
Light Bicycle 35mm carbon rims w. ZTTO M1 hubs, Sapim race spokes, double square nipples
Hutchinson Griffus tyres F 2.5, R 2.4
Almost bang on 14kg

If you look for an XC bike. Did you look at the FM936 or FM909 from Carbonda ?
Many happy people here(me included).
They are not on aliexpress, but by direct contact and trustworthy.

Would be my choice as well for a xc bike, nice modern geo and trusted by big name brands also.

Found this chainstay protector, the air one looks pretty decent.

https://www.aliexpress.com/item/1005004523306986.html

There's generic downtube protectors on ebay/aliexpress as well. Nukeproof dissent protector kinda works also, but it doesn't cover all the way to the edges.

The bearings should be full compliment (usually called max in the bike world), that's the most important for frame bearings. The hardware store ones are usually with a cage.

Built a pair of carbon hoops using these, came out pretty light for being "all-mountain" rims, just over 1600g. The spoke lengths Ztto provided was pretty much spot on.

I'm using Oz cycle's method as well. Degreasing the new chain is the most important step (and probably the biggest reason why some people don't have success with waxing). I do petrol bath for 12+ hour > degreaser 12+ h > boiling water rinse > isopropanol alcohol 1+ h> done, the petrol will be the most important step as it takes away pretty much 99% of grease and don't forget to shake/stir the container every now and then.