Xbox Kinect

I am in "weight loss" mode after the new year, and unfortunately can't say this is the first (but hopefully the last) attempt at losing weight. My issue is mostly my diet - I love junk food and fast food. Thankfully myfitnesspal helps "shame" me into feeling bad for eating that crap, and has helped me eat a little bit healthier.

Back on topic, I have a Kinect and was wondering if anyone else has seen significant results from eating healthier and using their Kinect? I live in Iowa and it's freaking cold, so I'll have to wait until it's warmer before I care to do any exercise outside. Any thoughts or comments?