I love this scooter a lot! The range and the speed is just incredible.
I had a xiaomi m365 before the thunder and the difference is incredible. I'd be able to get my from my house to town and back on my m365 and have about 20% battery left. Now I can do the same trip and only lose about 5% maximum. Range anxiety is not a problem for me anymore.
The speed is incredible. Although advertised as 50mph top speed, I managed to get 56mph on it, which feels incredible, especially on long flat roads.
The scooter folds up nicely but I wouldn't recommend carrying it upstairs, although it's perfectly possible, it just takes a while to bring it up stairs but it's not too heavy to the point where it's impossible to carry.