Just got home from Opa and already writing a review... for a reason.  I don't appreciate the way I was treated this evening.  I came into Opa after purchasing a Groupon back in November.  After leaving a 12-hour day at work I had forgotten to print the Groupon, but of course I still pulled it up on my phone.  When the waiter came over to get the Groupon information he had another girl help him out... I handed the girl my Blackberry after pressing \""Use Groupon\"" and the screen came up with a bar code and code written underneath.  The girl held my phone for a good minute and said \""I don't know what happened, it just went back to the main screen.\""  My Groupon had been marked as used, which is what she intended to do... Then she told me she needed proof that it was marked as used this evening.  I went back to the \""redeemed\"" Groupons and showed her, but of course there was no date next to it.  After explaining to her that she had hit marked as used and I had brought up the bar code for her she refused to take it, and walked behind the bar to make drinks for another table.  When I turned around and looked at her she was defensively bitching to the staff about me as if I had been rude, when all I was trying to do was show her the \""redeemed\"" Groupons that I had.  I finally told them to forget it that we would pay full price and I would take it up with Groupon tomorrow to get my money back.  What a hassle after such a LONG day.  You'd think after all that they would at least comp us a dessert or glass of wine.    \n\nSO: 2 glasses of house wine, which were less than mediocre.. a \""combination plate\"" which was also less than mediocre, and a plate of lamb and potatos... which was also less than mediocre.  I would not rave about one thing about this place, I didn't enjoy a second of it.  (Not to mention, all of these less than mediocre items cost us a total of $75... I wouldn't have paid $30 for this awful experience) On top of the less than mediocre food, the waitress that was bitching about me and my Groupon circled our table, wouldn't make eye contact with me or my boyfriend, and had an awful look on her face.  Because of the Groupon situation she didn't refill our water until after our plates had been cleared!   I felt as if I was being mistreated and accused of LYING and trying to use a Groupon twice.  I wouldn't even go back to this place if they offered me a free meal because of this stupid situation.  The dinner was uncomfortable for the entire hour we were there and it wasn't even good.  Then right before we got the bill this awkward belly dancer came to our table and danced for us... Not gonna lie, she was also less than mediocre. \n\nAWFUL. AWKWARD. UNCOMFORTABLE. NOT WORTH THE MONEY!!