I have been here a few times now and have loved it each time!
My friends and I went here on Saturday January 16th for a friend's 27th birthday. We got bottle service for $550 which came with 6 free covers, 2 bottles, assorted pops and juices, and a bottle of sparkling wine. I always go on Sundays which I guess what Uniun is known for. But I had a lot of fun on Saturday as well plus they had free cover for ladies before I think 11:30PM or 12:00AM. The music was great! I believe they played a lot of EDM.
The bottle service was wonderful. Our bartender/service girl was super friendly. She helped us with the drinks which was helpful because I'm sure you can imagine how we were as the night went on with bottle service :D The service was phenomenal throughout the night. Every time a bottle service person walked by our booth they asked us if we needed any thing. Fab service.
I will definitely come here again and very much recommend this place.