I've had the Q. ball for a while now and I really like it.
* The nozzle is orientable which can be useful in some cases.
* The nozzle is not only adjustable but also stays in the direction you choose, so it doesn't wobble back and forth all the time.
* The nozzle can be removed, albeit with some extra pressure. But then you have to make sure that no dust and the like gets into the inside of the ball.
* I find it very useful that the ball "fills up" very quickly after pressing, so that it is possible to blow quickly after each other. The material is made of durable quality rubber. Completely "emptying" is easy without large or sturdy hands. For organizing all accessories and camera I use the Lowepro flipside 200. Easy, safe and sturdy.