Quick Ball is basically good old Fast Ball with the added effect of grabing Basics as well as Evolutions. Personally, I find it a bit annoying compared to Fast Ball as there are an infinate number of other ways you can get a Basic. It shines in Turn 2 Decks like Kricketune where you're running limited Basics anyways, so providing you can draw out your Basics, Quick Ball searches for the much needed Evolutions only.
Modified - 8/10 (Good for Turn 2 decks and other fast ones, but a bit more inconsistent in your regular deck, which can have multiple Evolution and Basic lines in it)
Limited - 10/10 (Who cares what you get here, it's free searching for a Pokemon, and you might even get lucky and pull that needed Basic or Evolution card)
Unlimited - 1/10 (Fast Ball is here, which I like more. Besides, who runs either of these much in Unlimited decks anyways?)