Okay - this is kind of a range report/assessment of the new Gen4 G22, reporting for the "pro-Glock" side, I suppose...
Just took my brand new Glock 22 out to the range for the first time yesterday. It was amazing, even better than I remembered. The Gen4 trigger is great, and needs no modification at all. This IS supposed to be a service pistol, NOT a bench-rested target pistol. I recalled that the Gen2 I was issued had a sweet trigger once it was worn in some, but this one is worlds better, right out of the box. It is smooth, light, crisp, and absolutely predictable.
By the way, I am no neophyte to pistol shooting - I have been doing so since 1976, and have owned & shot a LOT of pistols over the years.
I do need to adjust the rear sight a smidgen to the right - I had the store replace the stock sights with Trijicons, because that's what my issue gun had, but they didn't zero them when they installed them. They are very close, but with just a tweak they'll be perfect.
I had a buddy with me (pretty much a new guy to handguns), and it was so natural for him that he instinctively shot tight groups with it and right to the point of aim (well, a little left, due to the aforementioned slight sight misalignment). He was very taken with the G22.
NAA (CNG mod, as in post #57, above) is a good friend of mine and, trust me, he knows more about most handguns than most of us will ever know. As far as Glocks are concerned, he is "the pro from Dover". Funny story, back in the day, when he & I were heavily into shooting 1911's (by that time he was a collector & acknowledged expert on 1911's), he came back from the Glock Armorer's course, I asked him about Glocks, as I knew nothing about them. He said that it was a good news/bad news thing. The good news - Glocks were fantastic guns. The bad news - I was going to like them better than 1911's! I was aghast - I LOVE my 1911's - but he was right. The G22,at least, was a winner. My opinion has not changed, although the G22 has - but only for the better.
Is the Glock for everyone? No, of course not, just like one style of shoes are not for everyone. But don't let anyone tell you they are crap - if they do, you can guess what their advice is full of. Maybe they don't personally like them, and that's fine, but their opinion doesn't alter the fact that millions of them are the chosen service pistol for armies, police departments, tactical teams, special forces, etc. all over the world. There is a reason for that (and low price ain't it!). They're reliable, they're accurate, and they're very easy to shoot well.
I suggest you shoot as many different pistols as you can before making your decision. You may hate the ergonomics of the Glock, and love the SIG, or vice versa, or something else entirely. There is no substitute for experience.