It seems like a cool place to hang out and have e few drinks, especially in the upstairs area. The bartenders were pleasant and the prices seems comparable to 9:30, maybe a little less expensive.
Parking could be an issue on busy nights. The neighborhood could be a little sketchy if you're alone and I'm not really sure where the closest Metro stop is.
The sound was not good at all. I mean it was really poor. If they're going to compete for shows with the likes of Black Cat they need to invest some money in a real sound system.
Check out their website if your curious. It doesn't look finished and has pictures of famous bands that haven't played there. I find that odd, but maybe it's just me.
http://www.rockandrollhoteldc.com/