Ok so I have a G2 and a quest 2 , coming from a rift CV1 the G2 Image quality was a glorious jump however I found the FOV sucked. I have since removed the face plate and attached an odyssey VR cushion and it has transformed the headset for me. A large increase in FOV and still have those gorgeous visuals. Alas my 1080ti was struggling so I have just in a moment of madness got a 3090 to run it. (I tried for ages to get a 3080 for under £750 and failed).
Huge buyers regret and I can't even use it yet as I don't have a good enough PSU. But I digress.
At stock the reverb G2 looks great with a rubbish FOV. With the mod it looks great and has a nice FOV***
For reference the quest 2 still looks good but not as good as the G2 and the FOV sits between the stock G2 and the modded G2
**** The FOV you get with it depends on size of your face.