Coming from a 1911, the Glock 45's are blocky, both frame and slide, and have a long, mushy trigger pull. More muzzle flip for me also. If you are a "shooter", you'd almost have to laugh at them...to be honest. But, you can get used to anything if you wish.
So, the question is why own a Glock?
They are lighter, cheaper and chances are they will work "out of the box" as most people like to say. That's a given.
Arguable points would be reliability and durability compared to a 1911...and I'm not "going there", old boring discussion.
The other arguable "point" is the SA versus DA or whatever trigger actions.Same discussion as above...not going there.
In regards to Glock compared to other non SA guns, i.e. H&K, SIG, Beretta, etc, etc I really don't read that Glock is more reliable than any of the above, except from "Glockers". And "Sig'ers, H&k'ers" feel their guns are more reliable and on and on.
Glock is a fine gun and deserves to be "up there" with the best of them.
The interesting question would be whether Glock would sell as much as they do if they were the same price as Sig and H&K? If so, I'd give them the "perfection" title in the "wondergun" category...1911's excluded of course.