In related foam, my wife and I decided to give up on our old-school rotary power push mower. I loved the quietness, the lack of maintenance and gasoline, and the fact that you just picked it up and started using it. But it doesn't cut through dandelions, it doesn't get close enough to the edges, it misses quite a few blades, and you have to pick up every. single. twig. Sadly, it just ins't working very well.
We'll keep it for hitting the backyard every once in a while (grows faster than the front, less sticks), but it just won't work as the only solution.