I have used it a couple of times. It is easy to apply (I applied by hand with yellow foam applicator), as it spreads very nicely. I've applied it in both extreme heat and extreme cold (once in mid July and once when it was snowing outside... but I was in my garage) - I found it to take quite a long time to dry (this was judged by the finger swipe test) and it was not particularly easy to remove, but it wasn't terrible. Now, this may be due to the conditions in which I have used this wax ie extreme heat and extreme cold, so if you live in a more moderate and controlled environment, you may have different results with removal. I've had no issues with staining either.
As far as protection, I can say that the water beading abilities were great. After 3-4 months I noticed that the protection was wearing down... but it was still beading, just not quite in the same way... I'm sure you know what I mean. Anyways, I stripped my car and applied 22ple so I don't have any more personal experience with it. I've used it on a couple of customer cars, but I do not regularly see their cars so I can't give you any feedback on their experiences.
Here are some pictures of my car right after I got it... this is after a full correction and I used Nanoskin Hydrophobic Paste Wax as LSP.
