Uhhhh, how much research is SOME?!!??! Obviously not enough because Ttokkyo is a great company that MANY people rave about. If it wasn't for them, you wouldn't have NEAR the selection of AS you have now in Mexico. Brovel is good for the price---underdosed, but cheap so what do you want?! Goldline I wouldn't trust simply because I THINK it is an American Co. & the chances of getting legit American stuff is slim. That generic thin I've never heard of, but maybe someone else here has, I dont know. You beed to do ALOT more research bro. Any questions you have....dudes here can be pretty helpful!