I recently had a BG fit on my new Roubaix. I rode it first for a few months, including one century before getting the fit ( I got a much simpler free fit when I purchased the bike). The fit ran a fine line between making improvements to my set up, to upselling me on equipment. Some of the changes proposed would have cost several hundred dollars for a a few millimeters of change that would likely not have any impact on someone with my fitness level ( or lack thereof). As it was, we swapped out for a new seat, new shorter handlebars, and inserts in my shoes, and made some adjustments in seat height, and position, clip position and handlebar position. Since then I've had no more hotspots on my feet, rode 50 miles last weekend with no rear end issues, and no longer get a sore Rear, so the fit did make some significant improvements that are worth the cost to me.