We used our SuperGlide for 5 years until we bought our current TV and no longer needed a slider. I loved the fact it was automatic and I didn't have to "remember" to stop the truck, pull a pin and let the hitch slide away from the cab or "remember" to put the hitch back into the normal towing position. Due to our neighborhood, to get the camper in the driveway, I had to jackknife the rig to close to 90 degrees. I would have hated to do this with a non-slider or manual slider.
Do I think it was worth the price...absolutely. I still have it stored in the garage because several of my friends who currently have TT are thinking of upgrading to 5th wheels and they all have SB trucks.
You will hear all kinds of opinions, but for my situation, it was the best choice.