We’ve been selling the eZee hub motor kits for about 1.5 years now, and have had great success with them over all. We have not yet had a single motor fail. Unfortunately, we have had some controller failures (which we’ve warranted). It turns out that many of those failures are associated with 48V operation using a LifePO4 battery, since those batteries often run at higher voltages (e.g. 52-54V).
We have alternative controllers lined up for anyone wanting to use this at 48V, please contact us.