Bought a Zipper ebike from Nitrotek in October. Arrived on time, easy to assemble and I absolutely loved it, used it most days for fun and for avoiding horrendous parking charges in town. Only downside was someone else also loved it - enough to steal it from my garage. They could've stolen my Jag or my motorbike but no, the Zipper was more appealing. I've just ordered a replacement - when it arrives I'll sleep with it under my pillow so this one doesn't get stolen.