This isn't for lazy mowers though or people with huge lawns (half an acre or less is ideal). You have to keep up with the lawn, can't let it grow into a forest, otherwise you will have to haul out the gas powered one, but maybe that could be a motivator to get out and do it. It also doesn't do well on stick weeds it needs to be an actual lawn not scrub brush territory or get out there and mow before the weeds get big enough to become stick-like.
Here's a good site to research them if you are interested.
Heck, even Walmart carries them.