MD6 is a decent product. Norephedrine is an excellent appetite suppressant, not much of a true thermogenic in humans (but appetite suppression is responsible for 80-90% of the efficacy of thermogenics that work via norepinephrine) -- alpha 1 agonists have some other effects that will aid fat loss. They should have put larger amounts of the other ingredients, but wanted to keep side effects down while still being able to list them on the label. It is too expensive, because of the addition of ALA, which likely does nothing for fat loss.
Overall, good appetite suppressant (on par with EC), okay thermogenic (likely less than EC). Probably does not spare muscle as well as EC because it does not activate the beta receptors to as great an extent.