I've been using a reel mower for the last five years. It seems to do okay as long as the ground is level and the grass isn't too high. First time I mow each year, I let it go too long and have to do the whole thing with a weed wacker. Luckily I have a small yard.

It takes a little longer to actually mow the yard, but I justify it as time not spent pulling a damn ripcord or tinkering with the mechanics. Just push.