Any information regarding the 6 MONTH SMILE?

I have seen online kind of a "new" technique. 6 month smile - some clear braces for 6-8 months which can give great results similar to the regular ones in 3 times less time. Has anyone had this? Do they really work as well as regular braces? Also I would like to know any information and opinions regarding Dr. Nick Simon from The Ealing Dental Practice and basically a review of the work anyone has had done there. Thank you