First and foremost, it's a flight simulator, with all that entails. It'll be out on PC and XBox in 2020, and while the vast array of instruments, knobs and dials could be simulated on an Xbox pad (there are apparently 160 different button combinations
), it's likely that console users and those who are not hardcore simmers will use easy-to-fly light planes such as a Cessna or Piper. 
But! The most amazing thing is how they are going to allow you to fly literally anywhere in the world and provide the scenically gorgeous experience seen in the videos and screenshots. This will be done by using their Azure cloud platform to stream data from Bing Maps (together with satellite data, height maps etc) and then using rendering software to overlay trees, fields, etc to fill in the 3D imagery according to the terrain type - all done as you fly over the route. You'll be able to either download all the data from a route ahead of time, fly a very basic rendering offline, or it will scale based on your internet connection. They have been cagey with what the exact bandwidth requirements are, just saying that 'good results have been achieved under a range of normal conditions'.
There have been some amusing issues reported by testers, for example the desert away from the pyramids had a blanket of deciduous trees due to a renderer terrain interpretation error; some of the walls of the Grand Canyon don't have satellite photos so they are a muddy texture etc if you decide to fly down into the GC.
Apart from all that, you have real-time weather simulation (they were able to fly through the recent Dorian), multiple volumetric cloud formations, with sunlight, shadow and air currents. Rainbows move as you chase them, and allegedly you'll be able to jump into any plane you can see on a Flight Tracker and take the controls, though I can't find where I read that now.
So, pretty impressive. I am by no means a sim person (I can spend hours on Google Maps though), but I think I'll be checking this out.
