I own Oxygen Emate Race for 4 months. During that time the bike turned out to be a very reliable robust machine. I used it in the mixed terrain on road as well as off road in the hilly areas of Dorking, Surrey. The bike has a great equipment with very good Shimano XT gears and Avid brakes which are in fact very responsive even if they get very hot on the downhill. The suspension forks are also very comfortable and the lockout on the forks helps while I climb.
The battery seems to be doing very well as much better in range than my old Powabyke. I do about 30 miles trip on the full speed of throttle twisted to maximum. With pedal assist should do even more. The electric hub motor is 250W (I've chosen a European version) and I can't say anything wrong about it. It does very sharp hills which I'm proud with as the Dorking area is really very hilly. Overall I think it's a great bike that for reasonable amount of money (paid £1100 and saved £100 of the RRP) and you get much higher specs than other manufacturers offer, I'm really pleased with it.