Six people I know (five of them guys) have had their drink spiked here at 911, and woken up with about 200,000 yen worth of charges on their credit card for an African strip club which they have never heard of. 911 management, the police and the credit card company does nothing whatsoever. Google "Roppongi drink spiking" to see why I'm avoiding the entire area until the club owners start taking responsiblity and drive these African thugs back to the hell-hole from which they crawled.
This place is very much like so many of the other small bar/club spaces in Roppongi that caters to the foreign crowd, except it is a little better decorated than most. When making the Roppongi tour, it is easy to head into the place to check out, so do it. It may be a little more upscale than its neighbors, but it features the same Roppongi people, loud, drunk and having fun.