congrats Duke - yes my great hope is you are thriving during these crazy times. Absolute Sound honors certainly deserved.
OP as many others have said, a lovely room. You should get busy w REW. I use Studio Six running on ipad and a calibrated mic to test the room above 100 hz. My RT60 in the condo system is .65, nearly control room perfect with just natural treatments. have fun, enjoy the journey. Good on ya for using golden ratio, right there you are in the advanced class….