You're not giving up anything by carrying the G30 over larger pistols. Mine is a sweet little piece that is super accurate and easy to use.I have .45 ACPs from Sig (P220), H&K, and Glock (G21 and G30). The daily carry is almost always the G30, in an outside waistband holster. It's all about the weight. Carry a full size 1911 around for a few days, then a compact polymer frame. You'll know immediately what I"m talking about, and remember the saying "The best gun is the one that you have with you".
Go big and heavy and you run the risk of not carrying when it "isn't convenient".
Just my $.02. YMMV.