I did the Japanese straightening and I love it!! The price had come down a lot since it was first introduced a few years ago. Now it's probably less than 150 cad for my long hair (past shoulder length). But if you have very wavy/curly hair to start with, you have to tell your hair stylist to use more chemicals because last time I had it done, my stylist didn't use enough chemical and I ended up having it done twice (the second time was free). it really damaged my hair though. But the first time I had it done (and it was perfect the first time around), my hair didn't have any damages and the straightening effect lasted a good 6 months..