I have only been to Greyson Guns in Orange and Hoffman's on the Berlin Turnpike.
Greyson Guns - Really Really nice people inside, small in store selection and seemed marginally more expensive than Hoofman's and other online sources. 3/5 because of price, in store selection is bad. People in the store earn all 3 of the points given.
Hoffman's - My original experience was frustrating when trying to get range time. You need to have a CT pistol permit for a year before being eligable to bring someone with you. ( I have 6 years military experience including an expert pistol medal) I went there with a friend who had only had his permit a month. They didn't want to let me shoot, luckily I had my old militarry ID (they didnt realize it was expired) and they let me shoot. They also repeatedly let me shoot by myself (renting guns) because active duty doesnt need a pistol permit there. Overall, the range guys I see weekdays from 8-4 or so are awesome. I have only needed sales help a few times and they didnt impress me much. However, I know that on holidays they are open and weekends it is a **** show in there. You wonder if they are giving away free merchandise or something. So, if you go on a weekend be forwarned. It isn't their fault. They have a lot of people working and they simply cant keep up with the window shoppers. I give them a 3-4/5 depending on who is working. Good selection, good prices, just really busy.
ps sorry for spelling I was in a hurry.