ffu has some article on these
* they are way under-powered
* THE PARTS AREN'T REALLY REPLACEABLE - ONLY BATTERY IS AND ONLY MAYBE ON THAT. WHEN YOU GO FOR PARTS THEY WILL LAUGH AT YOU.
* are not suitable except for small lawns like townhouse lawns (in which case, they are TOO BIG and you'd be better off with a grass trimmer) - because they are under powered
* HOMEDEPOT HQ has usa terrorists who have deals and plans with china. their plan is to kill off Briggs & Stratton USA by refusing to sell competing equipment at market prices
(after which, the chinese will begin demanding $1,000 per mower i'll inform you)