Anyone know if electric lawnmowers are any good?
Or generally what to look for?

I don't have much yard or shed space so just want something minimal effort/grease/maintenance

Just a push mower? Brushless? Should I avoid cordless?
@arichtman if it’s a small space, lower-power battery is fine. Small mower, low (5-6 MAmp/ hrs) works well. Larger space, larger mower and 36v battery system. Been doing that at least 6 years.
@Roybrown this is a helpful few numbers - thanks!