Thank you.
It will make it go better, although not with your daily commuting. But at high speeds, it helps reducing the wind resistance, and keeping the bike more stable.
It has the same purpose than the two ugly plastic parts BMW added to the 2012 S1000RR, excepted that Ducati did it with style while BMW did it cheap.
As for the paint issues, my guess, now knowing how the system works, is that if you don't take the time to properly remove them, you indeed might damage the paint. But I don't plan to take them off, so it's OK for me.
What I am going to take off are passenger pegs. :-D