Coming up on a week in Shangri-La and so far it's working well for me. My biggest problem is trying to recalibrate my eyeballs; eating anywhere near as much food at one sitting as I did a week ago makes me feel bloated and overfull. It's obvious that I'm going to have to rethink my idea of what is a reasonable portion of food.
The amazing thing is how easily I've gotten to the point where I'm voluntarily eating less food, and eating it less often. I'm technically obese (BMI between 31 and 32, depending), but have always been unwilling to be hungry for long. The Zone diet worked well in terms of weight loss without hunger, but dag, there's a lot of measuring and other overhead there. Nowadays I just chug my olive oil and that's it.
So anyway, I'm currently working on taking less food so that I won't be wandering around an hour later holding my belly while saying "damn, I ate too much."