Not a Golf, but I have experience of an SMF & paddle clutch on another car, great for trackdays, but I wouldn't consider it on a daily driver.
There is much more gearbox noise & "chuntering" with the SMF and the paddle clutch I have used had heavy duty springs, so the pedal was harder with a more on/off clutch operation.
Just to add the dual mass flywheel, normally has a gel like substance between the two plates, this reduces vibration and noise from the transmission, obviously an SMF doesn't have this. The main advantage being lighter weight so the engine can spin up quicker and obviously more reliability from degradation that can happen tom a DMF
If that is what you are looking for then fine, it's not ideal if you ever encounter a slow M25.