[epmaybe]

I've used it over a period of a few months.

Pros: Very intuitive controls after maybe 5 minutes of using it. Building in voice commands is easy in Unity, can't speak for other platforms. AR has more practical applications (but VR is more mature). Microsoft listens, and will try and add features that people ask for. The forums were very helpful for someone a year out of programming to come back and learn. Spatial mapping was really cool. I didn't think something could be that accurate in the space of a few minutes.

Cons: Controls can be a steep learning curve for older individuals (based on my experience). Development setup was hard when I started, but has gotten much better from what I hear. Trying to show what you're doing in the hololens live was very hard. Had to build that in, but I think now they've cleaned that up as well through Unity. I think the previous con points out that this is a very new platform, and things are going to change. Keep that in mind, and don't get too mad if things break. It's not super powerful, so you'll have to move to directx if you want to pull every inch of performance out of it. Shaders are your friend (I'm a newbie when it comes to game dev, so this was a lot of learning for me).

I know that people mentioned that FoV is bad, or could be improved, but honestly I didn't have a problem with it. With AR, and how you can still see the world around you, it wasn't a hindrance for users that would demo. That being said, I wouldn't oppose an improvement!