Got my mom a new Ego electric mower to replace an old gas Toro a few years back. Also has the electric blower and trimmer from same lineup so batteries are all compatible between them.
So far, no issues with any of them. Batteries are kept between mows inside the house so they are not subject to temperature fluctuations in the shed. Gas is a pain IMO for residential use. Noisy, smelly, maintenance and then having to search out for ethanol-free gas. Almost all of the gas now has ethanol in it and it does damage to the carbs on all these small engines unless you pay for premium without ethanol which is obviously much more $$$.