The E22's combination of weight, size, and user friendliness (controls, folding feature, drive modes) have made it nearly ideal to take along on my airplane for short trips.
The E22's main drawback has been its (in)ability to climb hills (6', 180 lbs rider), dropping down to < 5mph on hills within its stated capability, often requiring some kicking to keep it at walking speeds. Absent some gearing (which I would have paid a few hundred $ more for), there's probably no way around this without sacrificing weight/size.
Overall, I am happy with the purchase for my intended use.
