Magma, what are your goals and needs?
If you're over the age of 30 or under high levels of stress, or if T levels aren't as high as you'd like 'em (at the high end of the "normal" range), it's a very good investment.
I'm sure you're taking HOT-ROX for weight loss, but it should NOT be combined with MD6!!! That said, how's your diet? If you've got your diet dialed in and working for you, HOT-ROX is a wonderful supp!
Personally, I think everyone should be taking Flameout. It's that important to health in general and joint health in particular. It helps with cognition and mental alertness. It suppresses inflammation. It's a pretty amazing supp.
BETA-7 and BCAAs are also excellent supps, depending on your goals and how you're using 'em.
Again, it all boils down to your goals. Are you making progress in that respect?