One of our go-to spots in downtown for no particular reason, Commonwealth offers okay beers on tap and mediocre cocktails. If you can get here early and find a place to sit, it can be a cool place to hang out with friends on the rooftop if the weather is nice or downstairs in the lounge if not. You may, however, get booted from you seat if there are table reservations (minimum $250 purchase). The place gets insane on weekend nights, especially first Fridays. If you arrive too late there will be a $20 cover, and then an absolutely ridiculous line to try to get upstairs onto the deck.
I definitely like coming here with friends on casual weeknights, but I certainly don't think it's worth paying cover or standing in line for (to be fair, as a young woman in Vegas, I generally refuse to stand in line or pay cover for anything)
Shoutout to security guard / bouncer guy Ron for being awesome.