I think for the money it is quite a bit of bike.  I would long for more battery but I ride and ride and most people don't demand that out of their power source.  I like the hub motor and disc brakes.  At a quick look at your link I didn't see the weight of the bike.  It lacks a torque sensor assist which helps you get started from a stop. It has a throttle assist which sounds like it is designed within the controller vs having a throttle.  If the bike weighs a ton it will be a bit hard to get it going from a stop.  That's what the lower gears are for that I never  use 
  The fold ability would be nice.  It looks like a lot of bike for the bucks.  See if  you can find some videos of the bike in use.  It will tell a lot.
				
			
  The fold ability would be nice.  It looks like a lot of bike for the bucks.  See if  you can find some videos of the bike in use.  It will tell a lot.