Image from venuestar
My partner has performed at Bar Oussou several times, often until early hours of the morning. Kairo is the name of the band, and they're awesome.
I have also got on the mic at Bar Oussou on a spoken word night. A great experience, friendly MC and good crowd.
The atmosphere at Bar Oussou varies, lively up the front, chilled in the middle and chatty out the back.
A great venue, with great music and live performance.