Not really daily, as I used my DC5 and now FD2 once or twice a week, but I guess I have a fair amount of real world experience.
They are far more aggressive on the road compared to a helical type. You will get low speed maneuvering judder and depending on the type of diff and how aggressive it's setup, you'll get the clunk clunk clunk noises. It's a pain in all honesty and people will stare at you thinking you have a broken car.
You have to be mindful of where the front wheels are pointing when you give it some beans, because the car will go where it's pointing to, even in the wet with AD08R tyres. This can be problematic on overtakes where you need both hands on the wheel throughout the whole maneuver because if you switch off the car can pull you into a bush etc.
I think it would become too much on a car you're commuting in, but if you use it seldomly, the increase in performance especially on track is more than worth it. Along with a big brake kit, it's one of the best mods you can make and makes you wonder how you ever managed with a helical diff.
I'd be tempted to pay a little extra and get the KAAZ super Q one which has WPC coating which lasts longer and is meant to be quieter. Mine barely made any noise in the DC5 but now clunks when cold in the FD2. That said I'm not running any friction modifier in the FD2 which may quieten it down.
