Well I own the VR920, which I've had for like 3 or 4 years, and I do plan on getting the VR1200. Clearly I can't give an opinion of the VR1200 since it is not out yet, but I can tell you about the VR920. The concept of the HMD is indeed very cool and with a properly configured and compatible game its a pretty immersive experience (ie stereo 3d with head-tracking enabled). Certainly the 3D experience is one of the better you can get, since there is no ghosting like with other solutions which use a single display. So the 3D is cool. Head-tracking is also cool, when it works, however the tracking on the VR920 is not perfect. At times it can work nice, but it can be jittery and there is some drift. Due to the jitter it can also become headache inducing, so it cannot be used for long periods. It also doesn't add too much to games in terms of gameplay. I mean, its cool to stop and look around with your head, but its not an advantage in any way. If you had a completely mobile, wireless setup, then that is a different story. In that case head-tracking will add a lot. But if you are still stuck in front of a keyboard and mouse sitting in a chair, then head-tracking is not all that useful and is mostly a novelty. The only exception might be in simulation titles (flight sims, racing sims, etc.) where you are in a cockpit and the head-tracking is only used to look out the window. In that case its OK, because its only really for peripheral use. Trying to aim in first-person shooter games is really hard using head-tracking, though. And not every game is supported, only a few dozen.
The main issue I have with the VR920 (and I guess most low-end headsets) is that the virtual screen size is not very big at all. I would say it appears to be similar to like a 19" screen at an average seated distance (half meter). So it is not the huge field of view (FOV) experience you might imagine from the movies. It still looks like you are staring at a screen, just a rectangular display floating in space. It doesn't exactly feel like you are there. I mean, with the stereo 3d visuals it can get pretty immersive. But it falls short of the promises of VR from back in the 1990's. We are just not there yet. The VR1200 should be marginally better in this respect, with a higher resolution, higher FOV, and a wide-screen display. But it is still not like you are going to jack into the matrix with this kit. Far from it. As much as I am a huge fan of HMDs, and do still plan on buying the VR1200, I don't want to set unrealistic expectations for people. So its not exactly a bad piece of hardware, but if you are searching for immersion you might find a better experience with something like a 3D projector, which might only be a few hundred dollars more.
But really, you are going to want the 3D. If you don't like or wish to use 3D then there is no point whatsoever in getting an HMD. The entire purpose of the dual-LCDs is to provide the stereoscopic 3D experience. If you want to play in 2D, just get a nice 27"-30" 2D monitor and call it a day. The 3D can somewhat diminish the picture quality in respects to 2D standards. But I think the addition of an entire dimension more than makes up for it. For example, on the VR920 the refresh rate gets halved in 3D mode (only 30Hz per eye). With the VR1200 it appears that the resolution is diminished, possibly by as much as 50%. So you still get the full 60Hz per eye, but with reduced resolution. It should still look decent though. And this will happen with any 3D solution: 120Hz monitors will only give 60Hz per eye, interlaced 3D monitors half the resolution per eye, etc. So I don't think that is a valid reason to write 3D off completely. The 3d adds a lot and if you are looking for immersion then 3D is a necessity.
Honestly, though, other 3D solutions can provide as good or better an experience all things considered. For example, a 3D projector can create a 100" 3D screen in your living room. If you sit close enough, this will blow away the FOV of cheap headsets like VR920. If you have money, you can even look into triple 3D projectors like with Nvidia 3D Vision Surround. Admittedly only a small number of games are supported and even with a beefy rig you might only be getting 30fps, but it will be pretty immersive. Hell, even a 24" 1080P 3D monitor will probably provide a more impressive experience than the VR920 (disregarding the headtracking capabilities). So as much as I love the VR920, its just not very competitive with other modern 3D solutions on the market. Maybe the VR1200 is a little better, sure, but I don't think its going to be revolutionary. Just a baby step forward. But I still plan to buy one, so I will reserve final judgment until I see it with my own eyes.
You can also read a full review I did for the VR920 here:
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