I give the rooftop lounge two thumbs down. Let me start by emphasizing that the place is teeny tiny. It sits maybe less than 50 people at a time. FORGET about randomly coming here with your friends on a weekday and sitting outside in the patio to enjoy the beautiful weather over drinks because it will be never happen.
My friends and I are staying at the Hyatt and went up around 8pm for a few drinks. There were four of us so we asked the waiter how long the wait will be and he said 20 minutes. An hour later of nursing our drinks while sitting inside and seeing multiple parties of two get seated outside before us even thought we were there first, the waiter finally comes over and makes excuses about why it's taking so long. We HAD to tell him that we noticed that six people had left and that's when he went outside and finally got us a table in the shitty corner! Turns out the patio is L-SHAPED and we were at the crappy end near and exit with our backs to the view. It was so disappointing because we waited so long when we could have gone elsewhere but we tried to keep a positive attitude because we're on vacation and the hotel is amazing.
I'm giving the rooftop lounge one star because after sitting outside for 20 minutes waiting for a waiter to acknowledge our existence, no one ever came to serve us so we just got up and left. I told my husband not to even think about leaving a tip higher than 5%. One drink after an hour and a half of waiting is ridiculous!