This place was a lot less dirty than I expected it would be, and I was pretty impressed by the friendly atmosphere. Before reading the other reviews I never thought to compare this place to Tattoo Rock Parlour because TRP feels more like a tourist destination; most of the people there seem out of place and it feels more contrived than The Hideout.
What I like most about The Hideout is that there is plenty of seating and rooms to sit in away from the stage, which makes it far more easy to socialize and relax if you're not dancing. The patio area is pretty big, but I found it too smoky to linger around. I'm glad there are no TVs and annoying sports-bar fixtures, which don't add anything to most bars except a focus point for bored, glazed eyes with conversation becomes impossible over loud music.
The biggest drawbacks here are the bad sound, which blasts out to the point of annoying distortion, and the small bathrooms. The bathrooms are very tiny but mostly clean; I'm not a big fan of the advertising they use in the mirrors though! That being said, I wasn't here very late so I imagine things look a lot more crowded and less clean by closing time.