I spent countless hours researching and reading reviews on tubing benders from race car builds to 4x4 builds and forums.
Speedway benders seems to be the most cost effective, versatile bender on the market. The JD squared requires a floor mount setup. Whether you drill holes in the concrete with anchors and drive bolts in every time you use it, or find a permanent place, it is required. The cost of the JD squared bender, + a die, + the floor stand is quite the investment. Also, the JD squared until requires quite a bit of horizontal space to do bends. A fairly large space is required for bending a main hoop, preferably a empty garage with no Z parked in it.
Now the Speedway Bender can be stored easily, its portable to help out friends (or rent on craigslist with a deposit and daily charge) and all of the bends require space in a vertical direction. That means you can work in a tighter area. Or drag the unit outside for a few hours and drag it back in. The customer service with Speedway seems to be top notch, as I read several people had issues with *earlier* versions of the dies cracking. Those have been replaced with no additional cost and they updated the dies.
When I can spend the money.. I will be buying a Speedway Bender