I'm in the market for a higher res headset, but keep holding out. (Still somewhat in hope of a proper Rift v2)
Seems like it's between the Reverb and the Index right now. Pros and cons for each. I could see the Reverb being better for flight sims where resolution is more important than tracking. It depends how bad the WMR tracking is on the Reverb. For a general purpose headset I'd lean towards the Index, but external tracking seems a bit outdated now too.
It you do get the Reverb, be sure to post about your experience with Aerofly here.