It's not the speed of movement and reaction that bothers me - I like that. It's the slipperiness. But I could get used to that very quickly and it would not put me off giving the game a good go. That cockpit, however, is a kill switch.
edit: unless you can toggle it off. Anyone know if that's possible?
Elite will have cockpits just like this one and you're not going to be able to toggle them off either. X Rebirth and Elite share a very similar vision when it comes to how you experience the game.
We're both saying that you play the game through the eyes of the pilot which means you do see the inside of your ship and you do look around and have camera motion that matches that of a head lolling about within the cockpit as you fly around.
When you want to walk around your ship you just stand up and then your walking around in first person, seamlessly. This creates an incredible level of immersion and will make even more sense if and when we get Oculus Rift or TrackIR support. Hell even just using the mouse to look around within your cockpit would be incredibly useful when flying your ship.
If X Rebirth is a no-go because of the choice of cockpit then why isn't Elite?
Secondly on the single ship only issue. I think some of you are missing the benefits such a premise can provide. The attention to detail they can apply to that ship is incredible let alone the amount of bespoke customisation options. You will get attached to it and you will be able to make it your own. Having multiple ships basically means you cut back on those aspects above. The single ship also means a good narrative can be more easily created around it which being a single player game makes a lot of sense.
I am of the opinion that if Elite Dangerous just gave you a Cobra MkIII to play with it would actually make for a compelling experience. The amount of customisation and polish we could add to it would be incredible.