In my last post I mentioned that there had been no research on whether it made a difference it you had all your calories at one time or spread throughout the day. There's still no research, but I tried both and although eating only once is actually easier, it was hell on my digestion. Rob had the same problem. It resulted in horrible indigestion.
Now Soph tried the same thing and didn't seem to have an issue, so it's clearly a personal thing, but I thought I'd mention it, since it's not just me.
One downside of the whole diet, my favourite trousers are almost to the point where they're going to fall off. However, I can get back on a pair of jeans I haven't been able to wear in a couple of years :). Not the leather jeans yet - they're going to take a while longer, but progress is progress :).