I m interested in Neematic for the same reason.
Bought a second hand bomber, got the battery changed to 54 Ah 60v, got the motor changed to a torque one, but i m living in a ski resort and the bike keeps overheating way too quickly, preventing me from enjoying the bike park that ski slopes offer in summer time, limiting my exploration areas to large tracks around my altitude (120 degrees celsius reached after 300 m climb).Add to this the insecurity of a flat rear tyre in the middle of nowhere forcing you to push the bike on heavy slopes for kilometers! I contacted stealth when they launched their last kickstarter campain for their lighter machine, told them that i d be more than happy to contribute to a campain for a powerfull mid drive quality bike, but it is not in their plans. I was really happy to see that finally a start up was trying to develop that needed machine, and moreover in Europe! Time is not an issue for me either.