I looked through the Dealer Review forum and didn't find mention of G&G Guns. Apologies if I missed it.
I've become somewhat of a regular customer there. Warren, the owner, was friendly and helpful to me from the moment I walked in as was the rest of his staff.
His shop is fairly small so he certainly doesn't have the biggest selection of guns...but if I asked about something he didn't have he was instantly on the computer looking it up and telling me how soon he could have it.
Prices are reasonable and he's not afraid of offers. Not to mention he gets some seriously interesting stuff in from time to time.
I've made several purchases there and always felt like I'd received a fair deal...sometimes more than fair!
I highly recommend his shop for someone who wants a friendly, professional gun store in which to do their business.
He's located at Colfax and Carr, just west of Wendy's on the North side of the street.