My current recommendation (May 2020) for self-drive lawnmowers is the Mountfield S481 PD
I have recently put together a series of videos on this lawnmower from assembly to cutting.
This is quite simply a great choice as it ‘s packed with features such as mulching, side discharging and even a washing link to prevent the deck rotting.
All this with a good-sized 48 cm cut and a powerful yet not too fast self-drive from a well-known manufacturer. It even looks great and does an amazing job, even in damp conditions.
This lawnmower also comes with a 5-year warranty.
You can purchase this lawnmower here
You can view all the videos on this lawnmower here.