The magic of a GLOCK is that it always fires when you pull the trigger. "Magicglock" ha ha
I am a Glock convert. The first gun I owned was a a S&W 3906 with a manual safety. I upgraded to a Beretta 92FS with a manual safety. Sold all my guns when I got married. Purchased a Beretta Cougar 8040 with a manual safety as the first gun in the house as a couple. I would not have dreamed about owning a gun without a safety and I loved to hate Glocks because I listened to everyone tell me how evil they were.
All of that changed after I shot my first G19 and figured out why so many people love these guns. I honestly think that people who bash the Glock for lack of a manual safety simply lack the ability to make an educated argument or resort to restating what others have told them. If your only reason not to look at Glock is the safety issue, you have ruled out a large number of weapons on the market including but not limited to revolvers, S&W M&Ps, the Ruger LCP, Kahrs, Kel-Tec, and some SIGs to name a few.
As with any firearm, you better know what you have and how it operates. A good holster is a critical accessory for a Glock and your safety. IMHO if you do not carry with a round chambered, you probably should reconsider why you carry. I think Glock has gotten a bad rap with the whole "Glock leg" ramblings on the internet. Any manufacturer with the number of weapons in circulation and popularity of Glock is bound to have someone dig up a few instances to support why a gun is unsafe. My LCP operates the same way and I have never heard of Ruger leg.
So Glock bashing aside, my advice on why to consider or not consider a Glock is simple. Glocks are Fat! Some people have a harder time concealing these or do not think they are as comfortable to conceal because of the thickness of the slide. This has not been an issue for me. I regularly carry a G19 and a G23 with no problem. The other issue is the grip angle. The grip angle is different than a 1911 style grip and can be difficult for some to adjust. If you just can't get over the manual safety, there is an option called Sliderlock. This is a replacement trigger with a manual safety that locks the trigger safety in place. I don't agree with the concept or recommend this option but it's worth a mention. Lastly, it is hard to beat the price! If money was no issue, I might very well be a 1911 snob. (I'm not implying that 1911 owners are snobs, just saying that I have an appreciation for the 1911 and would own/carry if price were not a factor) No sense arguing the difference between a tuned BMW vs the Honda. The Honda is functional and reliable.
My point is....don't make your decision from the internet. Rent, make friends and shoot shoot shoot as many guns as you can put your hands on before you buy.