I bought this mower as I am waiting for my petrol mower to be fixed, and thought that it would be handy to have something ever so slightly more reliable than my 20 year old Hayter, which breaks spectacularly every spring without fail. And what a world of difference. I think I will actually sell the petrol mower, as I now have no use for it.
I braced myself for a difficult assembly after reading previous comments, but it was simple, the instructions were clear enough, and it only took about 15 minutes. I popped the battery into the big manly charger at the same time, and took it out for a test on the lawn, even though it was very wet. It cut the wet grass with ease, the stripes were defined and wide (it has a small roller), it is light and easy to push and the blade adjusts with ease. Four things are particularly brilliant, however:
1) It comes with two batteries, which I didn't really appreciate, so one can mow continuously (unless you have a very rough lawn which will use the battery up faster than it can be charged).
2) It has a cool comb thingy which cuts right to the edge of the grass. It really works.
3) Its pretty quiet, so you can cut in less sociable hours.
4) It probably won't break or need servicing routinely. This should save one a lot of money.
Disadvantages? It can't get through really tough grass as well as a petrol, you would need to mow it from a height first then again at a lower one. I suppose you don't look as masculine as a petrol mower user. It also feels a bit 'light' and platicy. But I think it will actually wear quite well, its quite well constructed despite the materials used. Hopefully it should last quite a while.
All in all a product which is hard to fault.