I personally don't like the "loser goes back to their seat" format at all, because it unfairly advantages the people in the 2nd and 4th bidding positions in contestants row. All they need to do for the first 5 IUFBs is to keep 1-upping the 1st and 3rd bidders (respectively), and, unless the 1st or 3rd bidder gets the price right on the nose, the 2nd and 4th bidders are either going to get on stage or at least be guaranteed to not go back to their seat. Of course, for the last IUFB, they should bid normally.
Going back to the show itself, I liked the idea of having Beth commentate during the SCSD and when I saw Hole in One come out, I thought for sure they were going to bring her out to commentate on that. Unfortunately, it was clear Beth wasn't terribly familiar with the show as she hardly provided any excitement when Bronte and Courtney both hit a dollar.