I've used the Miralax twice now as prep for a colonoscopy, and personally, as far as taste, it's the best method I used. I still got nauseous and gagged a little bit after about the fifth or sixth glass. I was worried at the rate I was drinking (fast at first, then slowed considerably), that I wouldn't be 100% cleaned out, but my doctor said the procedure went well, and now has a positive diagnosis of Crohn's. It's been back and forth between Crohn's and Colitis, so to hear him say that it's definitely Crohn's is somewhat a relief.