I bought a Glock last week and I am impressed by it's trigger group design (not the trigger). The trigger housing is all plastic........except of course for the bar and the spring. there is nothing to it....Amazingly simple. Clearly not the best trigger, but it works.
I can see why this thing is so cheap to make, repair, take down. Definitely a different beast when compared to my favourite HK. A blind monkey could fix a Glock.
I shot both back to back the other day and:
A couple things I do not like about the G17, the sights and the mag release. My MP9 had a better mag release, the G17 is very hard to push down and not as comfortable or easy to reach, this is a G17Gen4.
Grip angle, I do not notice anything weird about it, in fact the angle of G17 and HK is exactly the same. I think the hump might push the grip UP depending on different hand types, so it will vary depending on that I guess. It seems to work great for me, the hump fills the bottom of my palm and the thing shoots straight. It is easy to shoot, I shoot better with my HK.
The G17 sights are very ####ty when compared to my HK.
The G17 ergos are not BAD, but not as good as my HK. The G17 fits my hand very well. I like how low it is in comparison to my Hk, not by much but there is a difference.
The g17 polymer is clearly different when compared to the HK. This is a non-issue since it has been proven they do not brake, but HK is has gone a step further, the frame does no flex at all, specially in the dust cover where the Glock does (pig nose). Whether this is good or not, it is not relevant I think, the Polymer on the G17 is clearly different from anything else I have seen, with probably the MP9 being close to it quality wise. The best polymer I have seen (in a striker fired) is the one that Walther uses, with HK being at the very top (although it is not striker fired).
One thing I liked about the G17 which I was a bit skeptical about, parts availability. Very easy to find and buy, no hassle. That is a big + specially for us in Canada.
So I bought a g17,...bottom line is, I like the fact that I can appreciate even more my HK after I look/shoot the G17...so different from each other, they don't even compare.... Two different designs, two different firearms quality wise. It is like comparing a Honda Civic vs BMW...

So yes, they both go from A to B, but they don't even compare.
I wonder if anybody would be interested in seeing a video about the internals//design of both gun. I could make one.
As far as reliability//ejection//brass in the face. None. My cam pro loads (light) ejected properly to the right, 5 o clock, 3-5 feet away. So it is ok for now, it seems to work as it should.