I've had a Toro electric for seven years or so. It works fine for my small lot - front and back yards together are no problem on a single charge. My lot is 50' x 110', less the house and driveway. There are three 12 V gel-cell batteries in series.
The only issue I had was hitting something (likely the city water shut-off valve where the ground had receded) and ruining the first motor. Replaced it (not a hard job) and am now more careful about obstructions.
I really like how I can turn it over to clean wet grass from under the deck without spilling gasoline or oil, and don't have to worry about stale gasoline in the off-season.
I did not consider a corded electric - my dad had one when I was at home, and I didn't like using it.