New Leaf Metabolic assessment

Is anyone familiar with the New Leaf Fitness metabolic assessment?  It's an assessment that's supposed to tell you your resting metabolic rate (RMR), and to help you determine the proper "zone" to maximize the effectiveness of your exercise.  I'm interested in doing this, but am wondering if the results are accurate for people who have had gastric bypass surgery.  I'd appreciate any information you can offer - thanks.   Here's a link to their website if you want to check it out:  http://www.newleaffitness.com/ Kellie Lap RNY 10/25/2005 396/213/165

Pre Surgery I had the same thing done at OSU Medical Center. They use Medgem though. Probably about the same thing. Cost about 50.00 and tells you how many calories you burn at rest. It's not 100% accurate but gives you something to go off of. http://www.microlifeusa.com/products_weightmanage.asp

I know several people on the grad's board that have done this and were really happy with it. I tried to find one in my area with no luck, but I really wanted to have it done.