I'm staying at the Ren again and just happened to notice the 57 while passing by on the BTS 3 days ago. The wife and I stopped in on our way back and got in line (3 deep) at the front desk to inquire about having a tour of the place in case we might want to switch from the JW or Ren in the future. A guy came over and asked us to have a seat in the lobby and wait. After 15 minutes, we got up and walked out. All I can say is the lobby looked nice.
When the lounge was full at the Ren this morning, we were escorted to the 2nd floor restaurant for breakfast.
The Ren did miss the extra towel request permanently in my profile, but otherwise cannot be faulted.