hi yummymum, know this answer is a little delayed but not been on here for a while. i had this done not long back, i wouldn't say i felt amazing afterwards like some people told me, but 2 months on my digestion and bowel problems/bloating have really improved. Once i got over my initial embarrassment it was fine although afterwards i felt quite 'empty', almost like i'd had a tummy bug. i would have another one tho as it was ok!! yes its expensive and i also had the food allergy testing done which came back positve and am still waiting for details of the changes i should make to my diet. hope this helps you.x