Just chiming in about almost a month' use of Rift S.
No problems with sound, controllers or whatever else. Thing works like a charm.
Only issue is occasional "while screen flash", but this is common to everyone and normally doesn't bother me.
The only problem I have is my graphics card. With PD of 1.2 and no AA, I see shimmer and aliasing everywhere, but I'll have to live with this for now until next upgrade.