It definitely works and is definitely not a fad.
The short story: Try it and you will see what all the fuss is about and never want to fly in flight sim without one
The long story: This very day I had a long-time flight sim friend come and visit, specifically to 1) try P3D4 with great FPS, lots of scenery and autogen and yet smooth as silk; and 2) to try VR flight simming for the first time. It took a while to persuade him even to come over to give it try, but he eventually did and his reaction can be summed up in one word: WOW!

There was also lots of giddy laughter!

As I'd predicted he has now left with no other thoughts on his mind than "I MUST get a Rift"! Another quote was "this is the future of flight simulation". I'm happy to communicate this experience to others, as I was even beginning to doubt my own judgement, thinking maybe I was overplaying matters... but no, now I have an independent judgement too.
If there is any way at all you can get to have a go in a Rift or Vive in FS you have to do it... and you'll never look back
What the hell... if there is anyone here at CBFS who wants to visit me for a trial I hereby extend an open invitation...

Just send me a PM if you reckon you're close enough or will be passing through... (note I'm not going to state exactly where I am on a public forum tho)
Formerly "Airtrooper"
i9-10900KF, 64Gb RAM,
RTX 3090, Quest Pro, Win10 Pro 64-bit
Saitek Combat Rudder Pedals, Saitek X52 Pro