I don't have much weight to lose, but I have noticed a few interesting things since I started Paleo diet (I do it about 80% of the time) a few month ago. My skin cleared up and my eyes became whiter (I must have improved functioning of my liver). My weight is stable and my energy level has increased.
I need to expand my Paleo menu a bit, but other than that,it worked great for me and I would recommend it for folks who are trying to lose weight. Restricting carb intake is your goal. Exercise is secondary (mostly for feel-good reason) when it comes to weight loss but it will help with a sleep and will increase your metabolism somewhat.