I am utterly shocked at how this place has ANY favorable reviews. The hookah section is like paying to sit in a dank, dirty frat basement. The "menu" said it had food but there wasn't anything available. The hookah itself was ok at best. I'm used to places having a disposable mouthpiece, but they didn't. Throughout the night random drunk people inexplicably came to "use the bathroom" in the back. The employee was nice but disappeared for long times and wasn't very forthcoming with help. I would say he tolerated our presence at his business. Unfortunately this is the only option for hookah in town. Overall I can't see why anyone would EVER return here. I won't be back. I would give zero stars if possible.
Review Source:Great social environment! I saw people here playing chess to just chilling alone on their laptops. I came here and no place to sit; sat by 3 strangers and became good friends with them at the end of the night. Great hookah, really affordable and really friendly staff. A high recommendation from me to anyone. There are lots of hookah lounges back in Cali., and this is probably better than more than half of the ones i go to back home. 5 stars! Will be coming back :).
Review Source:I have experience in both sides of the business but I'll start with the hookah side.
  This was my first experience in smoking Hookah, and it is now a favorite hobby of mine. The prices are reasonable considering how long a hookah can last. The staff is knowledgeable about hookahs and will glad strike up conversation about it or anything else.
  The bar is also one of my favorite places in town. The drinks come cheap and they come strong. I'm not a beer drinking so I can't have much input there, but they mix plenty of things that are very tasty, in a fun environment.
I love this bar! If you've been here before and had a bad experience, I encourage you to try it again. The bar has undergone a change in ownership and management, a remodel, and the hookah and alcohol are now separate.
The drinks are inexpensive and very strong. (They aren't joking when they call them Stron Islands!) They have 2 dart boards and 2 pool tables for the game-oriented, and new booths for those who aren't.
My favorite night to go to Green Street is Tuesday. They have Outlaw Karaoke--the same awesome karaoke DJ who does White Horse Wednesday nights, but without the flooded bathrooms. Bud and Miller family bottles are only $2, and Mikey and Dan have a whole list of signature drinks if you're not into beer.
Overall, Green Street is a great place to grab a drink, any night of the week.
_Hookah bar_
The only hope I had for a decent hookah bar on campus, and it's been dispelled from the first visit. Going down the list of flavors, 80% were 'out'. We had to switch hoses three times, each looking worse than last. We ended up with a hybrid of dirty cloth, disintegrating velvet, and duct tape, which provided a mood-setting lung-full of dust on first use.
It gets one star because it's the only place on campus you can buy (low-quality, quick-light, chemical-laced) charcoal after the head shops close. Last I checked it was $2/roll. You can also buy small quantities of molasses, so it's a means of exploring flavors before investing in one (which you should buy online).
The other star is for the staff that is (or tries to be) helpful. I think most of the blame goes on the owner who can't seem to understand the need to stock your menu's offerings or investment in new equipment. Staff could do a better job cleaning/maintaining the hookahs.