Echoing comments from others, Sidebar is a great spot albeit only once in a while because it is overwhelming to the senses.
On my most recent foray to Sidebar, the staff members were great (i.e. very pleasant, attentive, no attitude), the drinks strong and the appetizers delicious.
As to the people watching - CLASSIC!!! Including several hookers, one porn star, Russian and New Jersey mafia, a transvestite, too many gold-diggers, several Cougars, plenty of the clueless, the bewildered and the surgically-enhanced.
Pros: Great service/drink/food, crazy fun people watching
Cons: Sensory overload
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