I used it about 2 years ago. I had already did another cleanse a few months earlier though.
In the beginning, like any cleanse I do, I felt someone sick. (nauseous, bloating, almost flu like state, increased bm's)
After that, I just felt good. More energy, having good digestion and regular bm's.
If you never have taken a cleanse before, you will most likely not feel very good since your body is loaded with toxins and they are all releasing.
In the end, you will feel so much lighter and more energetic.