I think for me (and seemingly many of us considering Dr Yaman), the lack of patient posts that show good results is what's holding us back a little. If I can get see a few of those, I'd book with him tomorrow. I have even directly messaged the people that left a 5-star rating on his facebook page and asked them to be a bit more descriptive (many of whom still look bald in their profile photo) and tell about about their results, but still no luck.