How did you find the on-foot combat? Personally I do not typically enjoy melee combat in games, which is the main reason I'm a bit wary of getting this game. Can you get guns to use in on-foot combat?
How did you find the vehicular combat?
Melee is the now standard basic Batman Arkham Asylum style with counters and finishers.
You only have the sawed-off shotgun when on foot with only a few (upgradable) shots.
With the amount of skulls you'll be bashing during the game the gun is more for shooting out of the car window or taking down 'heavies'.
The melee is fairly forgiving and easy and fun IMO, it's a lot easier than in Batman or Shadow of Mordor.
Vehicle combat can be a bit annoying, especially in the beginning when you don't have a lot of upgrades.
But you can always drive away or get out and initiate a melee fight or dodge and shoot the cars' fuel tanks.
When aiming from the car you'll always enter a kind of bullet time and all the crucial areas on the vehicles are then marked and easily selected for a shot.
So you can aim in slow-mo and select the wheel for example and you'll nearly always hit.