There's o denying Glocks reliability I just don't care much for subcompact weapon but it's just because the smaller grip don't feel as comfortable. I also don't carry 9mms as much but I do have a couple(P226 & a really loaded Springer 1911) that I use at the range. I really like the 229 Sigs. I have one on 40 that I'll carry sometimes when I want to give my Para LTC a break. A weapon you're going to carry is sometimes a little trickier than one you wont carry much or at all. Some don't like a full size. They are a little harder to conceal. I do carry a Browning Pro 40 that's a little bigger and it conceals fine. I just don't see size as the big a hindrance as some think it to be. The right belt and holster and you can carry about anything. For me a 220 Sig would not be a big deal to carry all day. But if the weight is the issue and that is totally understandable and a 9mm is the direction you want to go then maybe something the size of a Glock 19 would fit the bill. you get decent capacity and the weapon will shoot accurately a good distance. I know the whole 7 yard stats but I still like being able to shoot out25-45 yards and know where the dang thing is going.
The cool part of 9mm shopping is there are tons of them to choose from. Keep posting your progress. I love seeing what people get. It's the next best thing to me getting another one..heh