After a season using Landroid M, I was impressed by several elements. It handled my yard surprisingly well, especially considering the mix of grass types (Bermuda, centipede, and tall fescue) and steep slope in a couple of spots. The brushless motor is both efficient and extremely quiet – I could not hear it operating while I was working in a different part of the yard 75 feet away. I also like that it uses an easy to replace 20V Power Share battery, which should last at least 500 charge cycles before it needs to be replaced.