I haven´t tried exactly this stuff, but I´ve tried products with exactly (or nearly) the same ingredients. Got headaches and nausea from some of them, even vomited from some others. And the best results I´ve ever had were by far not so good as with the real stuff. Don´t waste your money on these products. Find a good chem supplier and get yourself some real fun! And if you still insist to buy from that company: with pure ephedra products, you can´t go wrong. Mixing them with either shrooms or weed (or both) can be quite funny, but stay away from combos with alcohol! Don´t use products containing MAO inhibitors (like e.g. passion flower), this stuff is for experienced people with a profound medical knowledge only. If you find a product with no ingredients list: forget it, the risks are simply too high!
I have reports of some of the stuff I've tried here... http://thepsychadelicradar.blogsome.com/ the ones I've liked tend to have BZP or Baby Woodrose Seeds in them.
I'd stay away from anything with piperizines in it TBH, nasty side effects and that legalhighs site somebody mentioned is a well known scam, not only will they rip you off they will also publish your CC info for all to see. Stay away.