The Suprep was still nasty - tastes like the worst version of cherry cough syrup, which I otherwise like - but the volume was the major thing - each of the split doses is only16 oz (the 8 oz bottle diluted with 8 oz water), plus extra in the form of anything water-based (I chose beef broth as it covered up the burpy-cherry-bitter flavor the best, plus it tastes like food). And the next morning, I was running essentially clear after the first half of the second dose, so I was given permission to not drink the rest.
I have never - before or after the DS -been able to get down a GoLytely or contrast media prep without throwing up - once my brain/stomach think what's going in is grossness in a large volume, my gag reflex is on high alert, plus I guess my pylorus clamps down, nothing moves out of my stomach, and after a certain volume is reached, I barf. The Suprep was small enough volume-wise that I could get it down and keep it down, and the extra broth was not difficult to get down afterwards, because it didn't gag me going down.