I've been using Rift S for about 3 months. It is somehow problematic for me, especially using with glasses, never ever been able to use it with relaxed manner. Cockpit resolution is great, no problems here but seeing the outside world is errr hard. Spotting the ground targets, spotting the single enemy aircraft with high detailed settings are not fine.
I tried out Reverb, I must say that it is very very different. At first sight you have a much wider field of view than Rift S. And it is much easier to see targets in distance. Readability for cockpit is not very different with the latest updates but resolution makes the difference when you look at your target at distance.
I have a RTX 2080 as my friend and he runs his machine with 50-55 fps.
I've sold my rift S and ordered Reverb, I hope everything will be ok.