T3 Tourmaline wet-dry hair straighteners?

Ok.I have a curly/wavy a little frizz type hair, and i want to get my hair straightened for a long long time. My plan was to go to a Japanese salon and straighten my hair there, but then i found these: http://www.t3micro.com/store/index.php?main_page=product_info%26amp;cPath=66%26amp;products_id=185


http://www.t3micro.com/store/index.php?main_page=product_info%26amp;products_id=186





there pretty expensive, so i want some help here..if anyone ever used these, does the hair stay straight for the whole day in any condition, and..


should i get one of these or go get my hair done at a japanese salon?T3 Tourmaline wet-dry hair straighteners?
Sedu is much better than T3.