Greenworks 20-Inch 40V Lawn Mower

I have used battery powered tools for several years. The battery has always been the weak link.. However, the difference from 10 years ago to now is nothing short of amazing. I understand that changing to a brushless motor design has made more efficient use of the available battery power but this mower is just plain better in 'almost' every way. I mowed my "average sized" yard on one 4.0 AH battery. I had purchased a 5.0 AH 'after market' battery just in case but I doubt I will ever need more than one to mow the entire lawn. Pluses & Minuses Plus - More than adequate power to mow the lawn - QUIET! This is a joy to operate as far as noise goes. It isn't any more noisy than a large fan. - No gas, no oil, and vertical storage. When I'm done mowing I can stand this thing on its backside and clean the underside of the deck with a garden hose. Don't have to worry about gas or oil leaking out. I leave it standing outside for an hour or so while it dries. Then back into the garden shed.. ready for the next time out. - Choice of bag, mulch, or side discharge. The first couple of times mowing with it, I'm using the bag. I'm thinking that maybe every 3rd to 5th time I mow, I'll do the mulching mode but by bagging frequently, I don't get the buildup of dead grass, requiring power raking, etc. And, living in south Texas, we get to mow pretty much all year long. Minuses - I don't have very many. I had read reviews by folks that said the battery was nearly impossible to get out once inserted. I can assure you that the mower I received does NOT have that issue. I'm guessing Greenworks have resolved the issue somewhere along the way. - It seems like, when the unit is standing vertically, Greenworks may have thought the top or front edge of the deck needed a handle. There are finger grooves formed in the front edge molding.. but it isn't deep enough to actually get a grip on. Maybe they just wanted a scalloped front edge appearance and it isn't an attempt at a handle..? I don't know but it isn't really necessary either way. That's about it.. That's all I can say that might be considered a negative. UNRELATED TO GREENWORKS - The rest of this review is aimed squarely at Amazon. NOT Greenworks. I ordered this mower on a Sunday afternoon. It was listed as 'Prime' and I am a Prime members. I did not receive the mower until Friday.. FIVE working days after I ordered it. When I finally did receive it, the box was torn open on one end. I wasn't here when it was delivered by UPS so I couldn't reject it or inspect it before accepting it. When I got the box open, all of the miscellaneous parts (Charger, one battery, and small pack of hardware) were loose and bouncing around inside the box. The individual small boxes these items had started out in were crushed and useless. There was cosmetic damage to the front of the motor housing and the side of the one battery was pretty scratched up. Also small rips in the material that makes up the bag. None of this impaired the machines ability to do what it was designed to do. Also, in addition to the parts bouncing around inside the box, apparently the 2.5 AH battery that was supposed to come with it, was not there. I tried the "return or replace parts" feature with Amazon but was directed to contact Greenworks directly. I filled out their contact form on-line but have yet to hear anything back from them. Hopefully they take customer service more seriously than this in the future. Overall I am quite happy with the mower and how it works. We'll see how long it will last with all the plastic it uses in lieu of quality metal parts.. time will tell.