Well manual didn't specify that you need a 1/16" allen to change the windage, so I was trying different types of screws and busted the windage screw to the point where I can't take it out.
And yeah G22 is a pain to clean, especially at first, since there are two tiny springs that are easy to lose. After you have esperience though, it ain't that bad. And it works like a dream on the range, so that more than makes up for it.