I was at a LAN party last weekend with my gaming clan (we play BF4), and 6 of the guys are interested in E : D - so I showed it off to them, with a Saitek X52 and TrackIR.
The 2 guys who had played the original Elite got to grips with it very quickly, any niggling doubts they had simply vanished after they had destroyed the Solar Fluke on SP scenario 2. One of them was already a standard beta backer, and is now going to upgrade to premium beta as soon as he can afford it. The other is currently scratching around for some money to get in on the premium beta (yay! result)
The 4 guys who had not played the original Elite (and are somewhat younger in years - mid 20s) struggled quite a bit to get to grips with the controls - you can tell they were used to FPS games and other space sims based on mouse & keyboard. I tried to explain that the yaw control is deliberately less responsive than the roll, and said they should think of it more as a aircraft than a space ship. After some frustration, and about 15 minutes of play-time - they each got used to it (this is a good sign), and also really started enjoying the gameplay. These four are now considering pre-ordering for gamma...
All in all, the demo went down really well, I hardly got to play on my machine much during the weekend. Though I was booed and called a 'git' when I was asked to do some of the sp missions, and completed them with some ease