Mows well, mulches less with damp and long grass (see photo 1). This can be partly remedied by going over it a second time at a higher mowing setting. Only have 50m2, so have not had to charge the battery after mowing three times (after the first time).
The dual charger apparently has a fan in it. It blows quite clearly audibly while charging. But this one is in the garage and we have no further problems with it.
After a lot of comparative research (including Bosch, Wolf) I chose it mainly because of the lower noise pollution (and Makita's good reputation).
Delivery was by the way without a smile: was rushed to the sidewalk, the bell pressed and the delivery person left immediately, before we got to the door. Box was slightly damaged (photo 2), content fortunately not. It looked like the lawnmower had been unpacked and re-taped before. The machine itself looked (thankfully) unused.
Sustainability score is more an expectation than an experience given the recent purchase. I hope to be able to look forward to a long working life of this little machine. .