I thought I might chip in here as I've been using a Quest 2 with Enscape 3 for a few weeks now. Most of my projects are concept/spatial design for houses and commercial buildings/spaces. I've not tried the AirLink feature as yet. FYI I'm using a RTX 2080ti GPU.
Quick overall judgement: If you've never experienced VR then the experience is generally positive and reasonably impressive, unless you suffer badly from motion sickness.
In more detail: (concise points outlined in bold font)
The interface is a little clunky, and will definitely require setting up well before meeting with a client. You have to have the Oculus app and Virtual Desktop installed on your computer to make it function at all, and use a compatible USB 3.0 cable (and port on your computer). Even when using a compatible cable (the occulus app has a cable test feature btw) it is not foolproof: sometimes the connection won't register, and hot-plugging is definitely not recommended. I seem to be getting waaay more WHEA errors since I started using the link cable.
The process to get it running is outlined by LEGOsketcher above (thanks) but I'll go over it again here so anyone reading this can see how the process can differ.
1) Open your sketchup model
2) Open the Occulus app on the computer
3) make sure Virtual Desktop is running on the computer, and that 'Allow remote connections' is ticked
4) Connect the Quest 2 to the computer using a compatible cable
5) Put the headset on, and if a message pops up to allow access to data, click deny using the controller
6) Still wearing the headset, if a request to enable link mode doesn't pop up, click on settings and then click on 'enable link mode'
7) A new VR space and menu will appear. Click on the Virtual Desktop icon (right hand side) and select the monitor which is showing sketchup
8 )Start Enscape
9) Click on the VR headset icon in Enscape
Resolution and clarity:
For me, the resolution isn't great. I think that is generally the case for the Quest 2. It might be 'good for VR', but it doesn't come close to a good 4k rendered still image- I can see the individual pixels and the field of vision isn't nearly wide enough for me to call it completely immersive. The lighting is OK - don't expect ray-traced smooth shadows and do expect some granularity. Also, some light-coloured but non-emissive materials have a sort of digital glow when up really close.That said, the VR experience even at that resolution is still impressive and I for one am adopting it into my presentation workflow.
As with the progression from sketchup-Enscape etc. viewing the model in VR will highlight any bad modelling/textures etc., and it really is important to use high-quality, low-poly assets (furniture, light fittings etc.) as well as making your model as detailed as possible to get the best experience. Think about how textures are represented on a victorian four-paneled door for instance: if the whole door uses the same texture, you will need to clearly define the edges of the panels using geometry and a contrasting texture to make these features visible and realistic.
As above, for a positive experience this will need to be all set up pre-meeting otherwise it could look pretty unprofessional. If the client/user has never experienced VR before (or perhaps even if they have) they may find navigating the space using the thumbsticks/joysticks disconcerting/nauseating so beware - I recommend having them seated to begin with. It helps MASSIVELY to have a large space and guardian (google if you're unfamiliar with this) set up, along with a much longer cable than you think is needed to accommodate the user turning around several times.
My PC specs are below. I have had the GPU temp. up to around 80 degrees C on the highest resolution possible, which is OK. I don't have any stuttering, flickering, clipping etc. It's all good.
Enscape 3.022 (as of this week)