Found a bit expensive compared regular braces. I'm trying to close gaps between teeth and have a better allignment. I was mentioned that Invisalign can fix my problem in a easy and fast way. Doctor confirmed me an average of 16 months. After prelminary visiti in April and May I finally received my sets of Invisalign on mid July. I started my treatment on July 16 2012. I need 16 months and 32 set of Invisaalgn to see the final result. Will try to keep you posted on a montly basis about results.