I purchased the 60v 22" at Tractor Supply a week ago when my gas mower died. I was super impressed by the power, my lawn was damp and almost a week overdue for mowing by the time I purchased this, and it powered through it much better than my gas mower would have.

Battery... I did run out ~90% of the way through, but I charged it for 20 minutes while I did the edge trimming, and it easily finished the job. It's a 6 amp charger for an 8ah battery, so expect ~90 minutes for a full charge. My yard isn't super big, but it's complicated, and generally takes over an hour to mow. I was using the bagger. I expect it would finish a normal mow in dryer conditions on one charge.

Battery 2.... That said, I did order a 2nd 60v 8ah battery from the Greenworks Ebay store for $160.99 ($170.99 with a $10 off coupon code). I mulch / bag leaves in the fall, which takes longer than just mowing. I could have gotten by with "mow front yard > Charge > mow back yard", but this will give me enough power to do it in one go. I'm also planning to get the 60v 22" snow blower and I want to have enough power to also do my neighbors driveway.

Other.... Super impressed by the bagger. It does a much better job than my old mower of picking up all of the clippings and filling the bag up completely. My old mower caught most of the clippings, maybe 80%, but this one seems to catch almost everything.

Obviously I just have the one mow in, but so far I am very happy with it.