Yes, I carry a G30. I love the gun, the feel in my hand is just right. It is a bit on the heavy side, due mainly to the number of heavier .45 auto rounds it carries. A good belt helps. I carry in a Pro Carry LT IWB at 3:30-4:00 position which is comfortable most of the time.
The only thing I've changed on the gun is I replaced the slide lock lever with the extended version. I didn't care for the OEM version. I also painted the white portion of the sights Dayglo-orange. For me, white sights disappear into the background too easily, with any make or model. I don't care for night sights. I think they're overhyped as to their real usefullness and all the harder to see in daylight.
I also have a G21 mag with the extended sleeve for a 13-rd backup mag.
I don't care if some think a Glock is "ugly"; who cares if it's concealed? It works every time, and that's what counts.
A good option as to lighter weight and slightly thinner size is the G36.