I moved from the HP Reverb G2 to the Pimax Crystal Light and my primary use case is for sim racing. In my experience, any wearable tech to include VR headsets take a week or two to get used to, and the Crystal Light was no different in that regard. With that said, after a couple of weeks of getting used to wearing the headset correctly, I've found it to be quite comfortable for longer VR sessions and the visual detail is outstanding.
Comparing to the G2, my experience is the clarity in fine details are where the Crystal Light shines to me. In the racing sims, I utilize the in-car instrumentation for things like lap time, remaining fuel, tire pressures, etc. In a current day GT3 car, those weren't too hard to see with my G2 as they were all usually on a dash display and larger. In a prototype where all that info is on a smaller wheel display though, I couldn't read the titles at all - I'd just have to look at the numbers displayed and figure out what it was. With the Crystal Light, I can now read all the fine print titles on those in-game wheels in the car. Also being able to see a long straight away simply disappear into the far distance with such clarity is truly stunning. Even in the rearview mirror, the track behind me now seems to go forever back with clarity.
The only real weak spot I had noticed with the headset was the included audio solution, as while the sound quality seemed good (bearing in mind I'm only hearing things like the engines, tire noise, etc.) they were just very quite even at full blast. However with a recent update to the audio drivers from Pimax, the audio volume is much improved to the point I don't feel I need to buy the upgrade audio solution anymore, unless I wish to (before the update, it seemed I would need to).
To me ...
...the pros are: visual quality, overall comfort, ease of use, standard audio seems good at least for sims now
...the cons are: stock face gasket is pretty wide with a gentle curvature and depending on face shape, may let some light in around the back side areas, build quality of the headset could be a bit better (to be clear, I don't feel it's poorly built, just that the Reverb G2 feels a bit more solid when doing things like removing the plastic lens surround/face gasket to clean the lenses, or picking the headset up by the front sometimes will yield a very plasticky crack/squeak and things like that).
The cons of the unit are far outweighed by the pros in my opinion, and right now I think it is difficult to find a better PCVR headset with DisplayPort connection considering the price point.