I have posted about this before on the forum as it was on my short list of scooters before I pulled the trigger on the YUME.
There was a youtuber that made a nice video about it. He liked the scooter (I do too) however the negative is it would only reach 70% of the battery and speed specifications that Nanrobot claimed it could get,
So max speed for example was typical of any mid range scooter (apx 40 to 45 mph maxxed out) Range stated was 80 kms but real world driving it was 50 or 55kms. So the owner was a bit disappointed in that, but overall happy with the scooters looks, and quality otherwise.
I wanted a stable scooter that actually can do 60 mph per hour if i wanted to (fastest i have gone is 50 on it so far) with some cool LED’s so I got the Yume But otherwise Nanrobot is a good brand. For me personally the YUME was a better value for the same or even lower price range I got higher priced scooter specifications and options.