It's an almost straight port of normal android into the headset which is at least familiar but they've really not made any progress in making it more VR and comfortable over time. Lots of small tweaking of whats probably not a great overall fit for VR.
For a direct example look at the room boundary system and setup.
Even with the new depth sensor and the color passthrough, it fails to figure out whether a table is a surface or a pillow of polygons, it fails to set reasonable wall boundaries (and then the ui is awful for addressing that) and then it nags and irritates people with those failures and misunderstandings.
Last I checked, the room software still only stores one room in your house. If you go to your kitchen for your coffee... remake the room boundary over again.
This is very fundamental for any AR to be built on and its terrible and unreliable.
Edit- also, last I checked, if you turn off boundary nagging with the devtools you cannot use the passthrough mode whatsoever.
Anyone saying that the Quest's software is obviously terrible lives on a different planet than me. The Quest is so simple and works so well, especially compared to other VR headsets+software I've used. I really like the Index too which I use a lot and think does some small things better, but I find it hard to deny the Quest is much more approachable and polished.
For a regular user, most everything seems to work well. Setup was easy, UI is polished and simple enough to get out of your way, and I personally haven't encountered any show-stopping bugs with it. Maybe I don't expect much out of it, as I see it more of an entry-point to actual VR applications I want to use, rather than something I'm more invested in.
If anything, I was surprised how well it worked for a product still so early in its lifecycle.
Congratulations to Meta VR teams. You've created a system perceptually more transparent than a thin sheet of glass.
What constitutes accurate wall boundaries is a matter of opinion but it works well for me. I've never seen the nagging you're talking about, unless you mean when it loses tracking entirely?
The UI is going to be the same that the other quest headsets have
In my experience the UI and everything in the Quest 2 and 3 works great so I don't understand where the original poster is coming from at all.
I bought one to hold me over until the quest 3 came out but it had a wobbly lens flaw that made me nauseous. It turned out to be quite common. I had to return it. Luckily the quest 3 is now out.