We went to celebrate my husbands birthday with about 15 friends and had a blast. We didn't want to rent out a private karaoke room, so we figured we'd brave the crowds, but it was almost completely empty except for us for most of the evening (it was a Sat Night). So we pretty much took over the place and the karaoke - it was like having a private karaoke room without having to pay for it, with more space, and the bar right there. I wouldn't recommend it if you're just a few people as an empty place may not be too much fun, but if you're going with a large group and not looking to meet new people, it's a great deal and lots of fun.
Pros: Great Karaoke, no crowds
Cons: Not good if you're looking to meet new people or g