I'm buying this and starting a gardening business #YOLO
Cold, no limited slip differential means you can't do any drifting. It might as well be front wheel drive.
Usually just a rubber belt that works when you apply tension, if so should be easy to replace.
Just purchased the 51cm version of this. It seems to be well made, starts first time and does a great job of cutting the lawn. They arrive without oil, so factor in a few quid for bottle if you've not got any spare car engine oil lying around. 3 year warranty makes it a no brainer
Bought the higher spec model from them last year, very reliable seller, great customer service.