I think you guys are giving up too easily. You may not feel the gunk coming out the first time, if you have eaten other foods that day and it comes out along with it, but trust me - it DOES COME OUT! Continue with the drink and fear not. Trust that you WILL inevitably notice visible changes very shortly. And the energy level boost as well.
Remember that everybody's liver is extremely filthy in the beginning, so as you are cleaning it out, it will begin a transformation process and once it adjusts to its natural cycles, your energy shoots up and your looks improve. Do not expect the very first time and simply overnight you will look like a model. It would take a couple of weeks to begin seeing more striking results. As with anything, this is a transition process, but the results are more visible and evident than with any other cleanse. Hang in there!