If they got that range into the 300km's and charge time in under 10 mins. That'd be the home run. Sounds like a great city bike with the low heat, noise, etc.
The laws of physics cannot move that much energy that quickly, not very safely.
They have a 240km range. How many people actually ride over 100 km frequently? For the hobby sportbike owner, the range is fine, for the commuter, the range is fine, the only issue is with touring.
Electrics work fine, and at the TT, they are bloody fast. The only real issue right now is cost. They need to be much cheaper.
The Brammo Empulse R is $19K, with US federal credits of $1900. Still too much when the equivalent gas bike is about $7K.
But, these bikes are all made in the US, with small numbers, if they made gas bikes with US labor and small numbers, they would have to ask $25-30K.
In the last 5 years, a lot has happened, there is more racing, there are more bikes, considering there was nothing 6-8 years ago, things have come a long way, very fast.
I think the sleeper is China -they have already banned gas vehicles in some urban centres.