Calling All Tech-Calorie-Activity Monitor Wearers: Do You Love, Hate, or Otherwise Your Gadget--BodyBugg, GoWear Fit, DirectLife, Gruve...? Is It Helping Weight Loss?

I'm seriously thinking of asking hubby for one of these devices for Christmas instead of an iPad. I know, I know. Nuts, as iPad is way cool. But, I'm serious about keeping this momentum going through 2011 and onwards. And I am very curious to see what monitoring will do to make me less couch potatoey. Let's face it, 2 training sessions a week has made me way stronger and more flexible, but it's not burning that many calories.

BodyBugg --I've seen it on blogs, saw it on Ali of TBL.
GoWear Fit--some great reviews, some not.
Gruve --don't know much about it.
DirectLife --seems to be newer, and saw Roni review it.

Any others I'm forgetting?

Most are pretty pricey (more than 100, especially once you add in the membership ongoing costs).

But I want to know if it helped you or not. If you continued to use it after the initial thrill. If you learned something from using it. If it was very fritzy or smooth to use. How much more did it help you move or lose, in your estimation. Anything you'd want to say about your gadget.

Would be great to try it free, but I'm not a high-profile weight loss blogger, so pffft to that. So, I need feedback from real life users.

Thanks.