The VR experience is amazing. I love the 1:1 scaling of head movement. The feeling of being in a 3d cockpit and looking around the canopy frames and having to look over your shoulder around the seat... all fantastic stuff.
Now for the bad news: I never liked playing games at 1024 x 768. As soon as I could I got a monitor that could do 1600x1200 at 85 Hz and a video card that could play my flight sims at that resolution and frame rate. VR makes the resolution look like 640x480. It is a huge step backwards from 1920x1080 or 1600x1200. Also, the field of view feels like you are looking through a paper towel roll or binoculars.
I am finding VR better for the "feeling" of flight, but my 46" 1080p LCD TV is still far superior for combat with the ability to read gauges clearly and see/recognize distant contacts more easily.
So unlike most people that have gotten into VR, I don't think I am quite ready to switch to it for the majority of my flying. It needs way more resolution, way more field of view, and hardware that can pump out the pixels at some ungodly refresh rate to support high resolution/wide field of view.
Also, I have comfort issues. I wear glasses. With the Rift on, my glasses nose pads press pretty hard on the bridge of my nose. After a couple of hours flying, it hurts and feels a lot like a headache. I may have to get contacts for comfort, but I hate contacts. They don't work so well with my severe astigmatism and my eyes dry out pretty fast and fatigue when using computers with contacts.
So, if you have money to burn, I highly recommend getting a Rift and enjoying all the amazing things VR brings to flight sims. But be aware that the image quality and comfort are far inferior to what you can do with conventional monitors and TrackIR.