I've got one Glock. It's a Model 23 .40 S&W.
It's been in my CCW rotation since 1995. It's compact and very reliable. That said, I like Sig, Beretta, HK, CZ, and the various 1911 style pistols more than Glock.
Glock is utterly reliable, but they aren't "Sexy". I can't get excited by a Glock. Not by how they look, or how they feel, or how accurate they are. The only thing I LOVE about Glock is the absolute reliability they give.
For that reason alone, I may, at some point pick up a G19 as a companion to my 23.