I’ve been using a EGO lawn mower for a couple years now. My lawn is 1/2 acre (about 2000 square meters) more or less. It can do the entire thing in one go but I usually do the back one day and the front the next.
I prefer it to using the gas mower. It’s nice not having to keep gas around or make runs to the gas station or having spill filling etc.
It’s no toy, does as good a job as the gas mower as far as I can tell.
This year I bought a EGO chain saw which also has the same advantages except keeping a mix around is even more of a pain.