i have an "inokim light" - light as in 14kg, got it to 1300km in ~3 months, 24km from home to office and back.
it's advertised as 350W, only rear wheel drive - but that's enough to make it skid if you're not careful.
10S2P battery, 4400mAh made from 18650 cells -> easy to rebuild with better or more cells
also, it's software limited to 25km/h - the legal limit around here (you can override it in a config menu)
what i like about it:
- decent range
- folds to a decent size - i can put it under a desk in the office and charge it
- built like a brick - you can shave at least 3-4kg
- wider than other models - i can keep my feet inside it's perimeter
- some empty space in the frame - i can add at least 2 extra cells or maybe switch to another controller ( i was reading about VESC)
what i don't like:
- 8" wheels make it unstable : this city has zero dedicated bike lanes (maybe the next 7+ earthquake will fix this ...), and usually the first lane is the one with the most potholes / manholes / wavy asphalt, etc -> you need to be extra careful or use the sidewalks as much as possible
- this version has some design issues: the manufacturer tried adding a drum brake on the front wheel and unbalanced the weight distribution on the bearings -> one of the bearings gets "twisted" and deforms the axle, witch is made from some softer stainless steel
- some strange regenerative braking with a stupid implementation: if you disable it to gain some coasting distance you loose the lights .... and it's always enabled, even when you don't touch the brake
- poor service / support "15 working days" for a part they had on stock, the entire operation took me 15 minutes to understand what i need to do and replace it
- poor quality control: one nut was loose, rattling inside the frame, one of the kickstand screws came undone, making it swing under the frame and making the entire thing jump
- no "health" related info, as the motor controller has just the power leads to the battery -> i can't see in advance when a cell gets weak to start planning a repair / replacement or to check pack balance