Worx Landroid M500 - Tough lawn - Edge cutting

My Lawn is bumpy, steep, and generally very difficult for any lawn robot. As original, the M500 could not get around my Lawn at all. With offroad wheels and removal of the grass fork underneath it now performs very good. Stops a couple of places, but manages to continue by itself. I am impressed so far. Next step is to improve some places of the Lawn, and move the edge cable a little closer to edges in general. Video shows Edge cutting on 30mm. Before video I did a run on 40mm.