Be patient! Make sure you're eating few enough calories to lose weight but enough to not stress your body out. Oddly I hadn't lost any weight with 30DS until I stopped it for a few days. I've read that when you go from being very inactive to suddenly very active and your muscles are under a lot of stress, they hold onto fluids while they're healing and make it difficult to see results on the scale until you give them time to adjust.

Remember that you WILL lose the weight with time and that doing it with diet and exercise combined will give you so much better long-term results than just diet. Like you said, you can lose weight either way, but to really get a good shape - and good health - underneath it all, you need the physical fitness. If 30DS still feels hard for you, it's working and you will see results. If it doesn't, up your weights, do it twice, or maybe think about switching to RI30. Remember that 10 days really isn't very long, and though a lot of people see results quickly, this is something you will have to do long-term to maintain your body how you want it, so try not to rush!

30DS does work, but you have to eat right as well. I saw results after 4 weeks when I did the "30DS with Kettle bells", with eating right, drinking water & sticking with it. This was in November & lost about 8 lbs that month, even with rest days every 7 days.

I started 30DS Cardio Kickboxing last week & feeling great, especially now that I know how to eat right.