It's been 3 days since I officially finished the Paleo diet. I weighed 61.9 kg today. About 1kg less than when I started. My weight can fluctuate 1kg in a week quite easily, in fact last week I weighed in at 62.8.
I think it's fair to say that I didn't lose any weight on this diet which is a bit discouraging given I didn't have a drink for 4 weeks and it was quite expensive to do!
That said the man-thing lost about 4 kg and is looking significantly trimmer and healthier. I think he found it easier to resist the snacks than I did although he also allowed alcohol.
All in all I would say the Paleo diet can work but only in conjunction with good old fashioned calorie counting.