HOT-ROX vs. Fat Burners w/ Ephedrine

I don’t really use fat burners that often, and I’ve always wanted to try HOT-ROX, especially cuz the store I work at sells it. Anywho, I also know of those other fat burners containing Ephedrine like Xtreme Thermoburn and Speedburn.

I’m probably going to get the Hot-Rox either way, but I was just wondering what you guys think of those burners w/ ephedrine.