My personal experience with Glock nay sayers is that the majority of them have never even seen a Glock in person, never mind fire one. If you want a hand gun that will most likely never fail you in combat like conditions, then try a Glock.
Seeing how beauty is in the eye of the beholder, it's pointless to talk about how ugly or splendid they are. Also, if that's your first consideration when buying guns, you might have bigger issues than whether or not you have a combat effective gun.
Here's the conversation that I had with a Glock hater that should tell you how "informed" these people are:
GH: I'll take a nice sturdy metal gun over that Tupperware crap any day
Me: Which one?
GH: Any one. I'll even take an S&W-M&P before a Glock. At least the M&P has a slide and barrel made out of metal. (this dimwit believes that the Glock slide and barrel are made of plastic)
Me: *raised eye brows, speaking slowly* Have you ever shot a Glock?
GH: Nope!
Me: Have you ever held one or seen one in person?
GH: Nope!
Me: OK then!
That's where I just dropped the subject because I felt I was getting dumber by the minute talking to the guy.
Here are some videos that might tell you a few things about the reliability of Glocks:
Glock Torture Test Muddy Water
Glock Torture Test-Sand
Glock Torture Tes-Bucket of Mud
Glock Torture Test-Dropped out of a plane
Glock Torture Test-Shooting under water