I know it was described in the original post, but can we just clear something up for those who haven't been to Platinum yet and might be getting scared off by this discussion?
The only thing "communal" is the fact that the showers are in one room. Otherwise, it's exactly the same set-up as you'd see at a better gym. There are two showers side by side, but they are each in their own individual stall, with three walls floor to ceiling and a shower curtain across the entrance. Your towel hangs on a hook out front, and you can quite successfully shower and dry yourself off behind the privacy of the curtain and never show your naked, hairy self to anyone else.
Beyond that, maybe I've just been lucky, but I've never even passed another guy in the hallway while I've been tower clad, and I've been there when it's been at its busiest. More likely, it's been the attendants I've been with. After the massage, they always throw on a towel and check the shower room. That way it's always just the attendant and I in the side-by-side stalls or, if one stall has an attendant in it by herself, it's the attendant and I in one stall.
So, Geez, have no fear. Go and try them out - it's a solid roster, and you shouldn't be disappointed.