I don't drive, but have recently started a new job that's a little bit out of the way, so I needed something that would get me to and from work without costing a fortune. Someone suggested the Z20 and after comparing it to other similarly specced bikes, it was by far the best value of the selection. It arrived within a couple of days of ordering, and with minimal setup was ready to go... I gave the tyres a quick check with the integral pump (in the seat post) and then I was off! Never having ridden an e-bike I wasn't sure what to expect, but when the assist kicks in, it's like someone giving you a gentle push, keeping you going that bit faster than you know you should be for the minimal effort you're putting in.
It's an absolute blast, and although I primarily got it to get me to work and back, it's made me want to go out and explore the area again in my free time, which I would never have done on a normal unassisted bike.
If you're considering getting one, do it - it's great fun!