Well at the moment: it’s getting ~30 FPS around Kobuleti
But seriously, I find the biggest issues to be how well you can see, and how you interact with the cockpit.
The HMD is a complex thing, where you have limitations in mostly resolution and field of view. Resolution isn’t great, but it isn’t a complete game breaker. Reading gauges used to be a problem, but pixel density has mostly resolved that (at the cost of performance). More I’m constantly trying to find an acceptable balance between being able to see enemies and immersion. The obvious answer is model enlargement, but I find that seeing fighters the size of airliners and tanks the size of houses creates an uncanny valley effect where I’m in this beautiful jet, but my targets are cartoonishly large… However on the other hand with the current resolution, it’s just hard to find stuff sometimes, especially ground targets and especially especially smaller jets like the MiG-21 and the F-5.
The other is field of view, which is about 2/3s of what we get in real life. The VR headsets don’t work on a curve like trackir does, so you actually have to crank your head and body around to keep sight of your opponent, meaning you have to struggle more to keep the bandit in your circle of vision. With larger bandits, like the Flanker, this isn’t so bad, but with smaller opponents like the MiG-21 and the F-5 it can be absolutely maddening. Also bear in mind that I have a Vive, which does not receive tailored updates from ED on as timely a basis as the Rift, so I don’t have any of that zoom functionality either.
The combination of these two issues means that you are far more likely to lose SA quicker, struggle to rebuild it, and have one heck of a time in a BFM engagement.
Finally I find it simply more difficult to interact with the cockpit. You can certainly use a keyboard and mouse while wearing a VR set, but it can be frustrating to try and root around for it in the middle of a flight, and I’ve had issues in the past trying to click buttons that are placed on the extreme edges of the cockpit (behind and far above or below you), because I’ll end up hitting the VR set against myself or something else. There are options to map mouse buttons to your joystick, but I’m not a fan of them because they are competing for already sparse HOTAS space which is all the more important because of the aforementioned keyboard problems.
However keep in mind that VR is in its infancy, and ED has consistently improved the experience over the past five months. You’ll also get some slight benefits. Two viewpoints means you have the ability to perceive depth, and this is one of those intangible benefits that somehow makes everything different. Formation flying, Landing, and especially gunnery are going to be completely different as you can now intuitively judge distance and closure far better.
If you enjoy flight for flight, and you are aware of what you are getting into I recommend it. However I am very much into the experience of blowing stuff up, and while I understood that VR was going to have drawbacks, I did not expect it to take as big a chunk out of my fighting prowess as it does. I do not regret purchasing by Vive by any means, but I’m not going to sugar coat it either.
Also if you fly mostly helicopters, don’t think, buy it. Helicopters are the exception to all of my gripes. Helo’s in VR are the beeeeeeeeeessssssssssttttt.