Can i recommend anyone buying an expensive one also buys a screen protector for them. Dropped my first Tomtom on handbrake of truck and smashed screen - very hard to replace on tomtoms.
Never had it head for low bridge so far but not every one is known about as councils don’t have to notify anyone, bit like weight limits. Plus the heights change sometimes.
They will try daft roads on.occasions. As for going over roundabouts, its jist worried about hitting the motorway bridges so avoids them…unlike that lowloader on the M20 last year. 