I bought a Green Works model last year and have been quite pleased with it. The model I bought was an 18"cut 24 volt self-propelled model. I only use this mower for trimming, mulching leaves and where the rider may cause injury in trying to mow slopes and ditches. I have used it to mow the
lawn just to see what it could do on a full charge and found that it took 2 charges to work at it's full potential on a 1/4 acre lot. I would not use it on overgrown lawns as it would bog down quicker than a gas mower. If your intent is to use as a primary mower I would recommend a 40 volt model or larger.