Gave you the run of the house Club level room, I presume? That's all I got as Titan on a stay in '20 and the hotel was far from at capacity (borders being closed and all). Friendly staff and solid F&B -- local craft beer in lobby bar, a mean (real) crab Benedict at Viet Kitchen that you'd pay 25 bucks for in one of the city's expat-oriented bistros -- were Ren Saigon's only saving graces. Otherwise, such a tragically outdated hard product there's simply no reason to ever return, not with prices north of VND 3.4 million.
Personally really looking forward to the Westins (Cam Ranh and Hanoi Old Quarter)