Visually:
Quest 2 is incredibly good visually. Even streamed over Wifi or cable, it looks better than the Rift S. The higher frame rate is great but the improved clarity is massive.

Comfort: The Quest 2's default strap I find more comfortable than the Rift S's halo strap. I don't really see a need to replace the default strap, though a lot of people report that it doesn't work well for them.

Convenience:
Wireless via Virtual Desktop is fantastic for most games. The visuals and tracking are without issues and hand tracking carries through for specific use cases. I thought I'd enjoy beat saber playing directly on the quest 2, but it feels terrible compared to desktop even over quest link. Beat Saber is really the only game I will need the wire for.

Tracking:
Native games tracking is fine, except beat saber feels off for some reason. Over virtual desktop, tracking should be great for 99% of games - I was able to play expert plus on beat saber but it does feel a tad jello-y when you're going that fast.

Over the wire, it feels identical to the Rift S. Video example of tracking just killing it on a wide n fast beat saber song. When I recorded this I was sure to swing wider than normal. Misses were my own.