Had it three weeks ago or so. I found food to be not as great tasting as I had imagined for 12 weeks before that LOL however, on the last day of it, when I was SO looking forward to being back on shakes, I felt awfully sick and have thrown up all of the white and greens -I like to think it was a stomach bug and not anorexia LOL-.
Metabolism boost wise I don't know, I lost that week nearly as much as on a normal week and then the one after it nearly nothing -TOTM- but I have lost a whole load -double- the week after so maybe it was from AAM.
All that aside, in short, I dreaded it as well but did it in the end nonetheless for one main reason. I thought that most likely, going on without it would be fine but for the small chance that my organism would come down with something after, wouldn't I wonder if it was partly because I skipped the recommended add a meal week?
Good luck with whatever you choose to do.