I use ball heads because they take up less space, weigh less, and are easier to travel with than pan tilt heads. But I really hate trying to level ball heads and I much prefer the greater control possible with pan tilt heads, so I use one whenever possible, which is always when I am working out of my car.
My advice, if you don't plan to travel a lot by air, get a nice pan tilt head and avoid the multiple irritations and lack of precision of a ball head.
Having said all that, the pan tilt head you show is a very hard to work with, even harder than good ball heads. How do I know? Because I have one exactly like it. That is, IMHO, definitely not a good pan tilt head.