I carried a Sig P229 in .40 S&W for over three years when I was working in Tacoma, Wa many years ago. The weapon does not, or didn't at the last time I checked, offer a safety, it has a decocking level to safely lower the hammer, but there is no manual safety. This is not my preferred weapon condition as I have been exposed to a lot of information since I naively bought this as my everyday carry gun. It was popular at the time and there was a lot of good press about it. *shrug*
That said, I was young and a bit inexperienced. I am not ashamed to admit that I carried forward cant on my right hip with a round in the chamber, but the hammer in the down position, so the first round would have to use the double action. I never had a problem, but that doesn't mean I would recommend doing that now that I have much more experience in the world of firearms.
The D/A draw is very hard, around 10lbs. according to the website, so the chances of "accidentally" setting it off are slim, but I still wouldn't recommend carrying hot and definitely not in Condition 1.
For the weapon itself, I never had a problem. The thing ate damn near everything I fed it and it always shot very true. As I got older and got more experience with firearms and the knowledge behind how they work, I learned the error of my ways and became a fan of the 1911.
If you like the Glock styling, but not the model itself, check out the Springfield XD line. I think you may find that you like what they have to offer.