I was gifted a 225-A1 for my wedding present last May. It is my main carry and dry-fire gun for the last 8 months (though only 4 months of live fire b/c knee surgery). I have 3500 rounds through it (and many more dry fire reps).
Practically, if you can carry this, you can carry a Glock 19, but in your case the capacity doesn't matter much. I think it carries just a bit better than the Glock 19 as the slightly thinner and more rounded butt tends to make less of a shelf for a shirt to hang up on.
I think it's one of the best Sig values for a new gun because it is essentially a Legion without the Legion non-sense on it. SRT, undercut trigger guard, and G10 grips. I've ended up with 8 magazines and they all work well. The thin mags are easy to conceal, but I did sand down the base plate edges off the mag I carry because they were too sharp and dug into me when I wear it without an undershirt.
It is a bit big and heavy for what it is, but that makes a quick full grip easy and the gun pleasant to shoot. I shoot is as well as I shot my 229. Since it's my only DA/SA 9mm it's nice that I can compete with it, carry it, and practice with it and it's a gun that doesn't feel like a compromise (again, capacity aside).
ETA: The front sight is recessed down into the slide a bit making some fiber optic sights (I tried the ones from Sig) unable to fit. I'm okay with the stock tritium sights for now. Would like a #6 front X-RAY, but they only sell sets for now.