I just checked out of the RO Sheraton yesterday. As a plat, I was upgraded to a non-towers junior suite despite the hotel being quite full. Nice room and recently renovated. (I was also offered a choice of a regular towers room, but the check-in agent recommended the non-towers suite instead.) The Towers lounge has a nice view and decent evening hors d'oeurves. The breakfast in the etc. restaurant (free for plats) is considerably better than the breakfast in the lounge. The lounge also offers afternoon tea, but the selection was quite small.
Sunday morning the temporary wall around the construction area was taken down and I was able to walk around the new terrace area as at least a dozen construction people were painting, scraping, and wiring things as they scurried to finish the renovations before the hotel's first scheduled conference (starting yesterday) and the big Loi Krathong festival for which they've been selling expensive terrace seating. It still looked like there was a bunch to finish, but hopefully they got it done.