Thanks to a friend, I finally head my first real Holodeck Moment in VR.
While Resonite gave me my first "this is my body now" moment, Resonites worlds were nice but mostly highly stylized (and honestly, I'm still smitten with having a closer body to what I want there), and SL was, as I mentioned, a 3D experience versus VR.
But I tried EmuVR at the suggestion of a friend - which is essentially a VR version of RetroArch for playing console games on your VR set. But it's set in a small room. From the 80s.
With the closed in walls, and the ability to really look up close and examine stuff (and the little things like candy bars scattered around, and pizza boxes), it really felt like I was inside a room full of TVs.
The game emulation was iffy but the immersion was really REALLY complete. Very VERY felt like a Holodeck sim....