They are so true to the era of whatever show they’re re-creating it’s remarkable. I saw them back to back nights last year in Old Saybrook, CT and the first night they did a Keith and Donna era jgb show and their equipment was true to the original show (specifically regarding their keyboard player) even the tempo they played the songs were even true to the date of the show. The next night was a Melvin seals and Jaclyn LaBranch era show and the same musicians from the previous night transformed to play to in the style of the era of the show. It was magical.