Wish I had seen this thread before buying. But here I am 12 days after forking over $500 for a controller the website claims will ship in 2 days and then he just never ships it. Never replies to any of my emails. And when you look at the PCB design, in the end he's just selling an unlocked sabvaton 96120 with a "custom" app that apparently only runs on iphone? (but the website says it works with android too)
I bought from powervelocity since I thought buying from an American seller would give good after sales support and faster shipping (cause I want to ride NOW). But unless I hear some darn good excuse for why you would walk away from your online store without posting up a "gone fishing till next month" note, I can't recommend ANYONE deal with powervelocity.com ever again.
Which is a shame, cause the software he's written for the nextgen controller to allow DC charging from any power source of a lower input voltage than the battery using the motor coils to step up the voltage is some absolutely amazing work that to my knowledge is not a feature of any other VESC based controller. It's a shame to have such a clearly brilliant mind hampered by a complete inability to run a business. Perhaps his wife or boyfriend should take over the store side of things so he can focus on the RnD.
EDIT: 14 days later. I have received a refund. Bought a 96120. I do wish him the best, but I only got replies once I created a paypal dispute. Not the best way to run a store or business.