Finishing a stay in Rama Suite right now and it is my new favorite as well. The outdoor patio is unique and wonderful. Not just the hot tub (which is great) but the canopy of trees over the lounging area, which provides shade most of the day. This is a perfect place to sit and read while enjoying the warm tropical air. Simply amazing to have this private green space smack in the middle of Bangkok, mere hundreds of feet from Sukhumvit.

I just wish there was a way to turn on the bathroom lights without lighting up the bedroom

This is one of the most accommodating properties on the planet, so I really doubt it. As noted in a different thread, you won't get nights credit for the nights post check-out.