Back in my bar-going days, Rouge was one of my favorites in the city. I don't know why but it felt like there were many less creepy people there than elsewhere.
The music was always great, energy was high, and prices were decent. Although, expect to wait forever and a day outside on Saturday nights....
There are two floors with different types of music, and I've always found that the top floor was always less insane and had a generally better overall vibe.
I haven't been back in a few years, so I can't speak for it now, but based on the reviews, it seems to have held on to its reputation :)