I have had the kit for about three weeks now. Installation was pretty easy; I just needed to take my time. I needed to do a little fettling to my forks (old-school steel/chrome touring bike), to get the wheel to fit. I have the larger Air Max battery which is perfect. I don't use the additional assistant on the morning commute but I do on the way home. The little niggles, and reading the reviews there always seems to be a 'little niggle'. The additional charger I ordered didn't arrive. I didn't particularly like the not being able to phone but email seemed to work. It arrived a couple of weeks later. Plus, I order an additional controller, to adjust the power settings or turn it off. When it arrived it clearly wouldn't fit on my handlebars. I was told I needed the attached to hold the controller. An extra £25 for a pretty simple post that screws to the battery clamp. At no time when ordering was it mentioned that I'd need to buy that. That was frustrating. One other thing while I think about it, again another minor (ish) thing but I'm a little disappointed about the built quality of the wheel. There are no spoke nipple washers on the rim. So the spokes are directly in contact with the rim. That's a bit strange. Over time the spokes will rub away at the rims and that will affect longevity. LIttle details like the seem to let down what overall could be a real quality bit of kit. Time will tell.