You've already got the right idea- do the set-up properly and most of the many possible problems won't even have a chance.
I did my own setup for my Robomow. I thought I did it right, by the book. Maybe I did and the book was wrong? Either way I had to re-do a few areas and change my charger base location before I got the performance I needed.
When you do the wiring, do it right. Solder & seal every connection. Use a measuring tape for proper obstacle clearance where applicable, and get it to the inch.
Cure lawn defects before you expect it to work perfectly. I'm still battling some kind of tunneling critter. It digs holes that occasionally trap the mower, being a 'tripod' wheel arrangement.