Most of us who have been to Tokyo have either heard the warnings or experienced some of what is in this article. Some of things mentioned in the article actually happened to a friend mine. If you have not heard the horror stories of Roppongi well take a look. Its not all bad certain places can be a lot of fun for a night out but there are several little tricks that can help you avoid issues.
It decently written with some pretty accurate information so i thought i would post it up since its a good read.
Roppongi: Tokyo's most controversial night spot | CNNGo.com