Carraige House is the only one in CT...the owner of that one has others in LI and NY. They are the best and fairest ($79/hr) MB dealer in CT and if you are a MBUSA club memebr you get a discount on parts. Art Foster is there and one of the best MB techs in New England.
Ken Marino is not so good and makes too much money on OEM parts that they get from Carriage House. Their folks are New Country MB rejects.
Of course, they are many other good shops in CT...but Carriage House is one of the best.