I purchased my 18 months ago, a demo from the dealer. It was a dream until I decided to do an update to the motherboard, which I had purchased the correct internet cable from the manufacturer. Opening it was the biggest mistake ever, as the "update" from the manufacturer was defective and shorted my board. Off I sent it to the only USA repair center at a cost of $50, even though it was under warranty, as you have to pay the shipping to send it there. 6 weeks and no repair, finally it was fixed when the new board came. However, it arrived damaged, one wheel broken. Be forewarned that the insides are plastic, and not a strong plastic, and this means that this mower is not built like my former robomower to handle drops or tough work.
At another cost of $50, I sent it back to the only USA repair shop. It was sent back "repaired", but the "repaired" wheel had the broken piece replaced with a different than original piece that is defective. I searched online and found a now defunct complaint blog where other lawnbott owners were complaining about their broken wheels being replaced with cheap plastic pieces.
What this meant for me is that my mower which originally could climb and mow with power, now has a defective back wheel that slips constantly so I hear a click-click-click and it will get stuck repeatedly. On average, I have to "unstick" my mower about 50 to 80 times as it mows. You can bet I sent it back again, at another cost of $50. After another "repair" it came back with the same functionality.
I was out $150 all from trying to "upgrade" my motherboard according to the manufacturer's instructions. If you buy this, I warn you to never never get tempted to do an "upgrade" or open it without cause as, at least mine, shorted with each opening. That is another thing, on the two additional times I was trying to trouble shoot the broken wheel for the tech, who is a nice guy, by the way, each time my motherboard would short, and that would mean another replacement of the motherboard. Since it was determined it was some kind of defect, it was all covered under the warranty.
Now I still run my mower, but it is the hardest work ever as I have to supervise it and kick it to steer it as it has no remote. To put it this way, a visitor came to my yard, and he exclaimed, "Who the heck mows your lawn, as I would fire that guy!" because this mower has an imperfect pattern, and with the defect of the wheel, it leaves "mohawk" like strips that take 3 or 4 mowing sessions to get, at a time of 3 to 4 hours mowing each.
Next mower I get will be a robomower as I originally had that is hardy, and electrolux repaired mine in the past, and it lasted over 10 years, same lawn. If you are not mechanically or electronically inclined, stay away from this mower, as it is very touchy and fragile inside.