I used the halflytly for my last prep. It is only 2 liters versus the gallon and it has several flavors to choose from. It was tolerable but I drank through a straw so I didn't have to taste it too much. I had no cramping with it and I was done with all BM's by 11pm that night.
-------------------------
UC since 2002-left-sided
Pancolitis diagnosed 5/2009
currently on Colazol, probiotics, fish oil
Dr. wants me to start Remicade but I am very scared.