I just sold my Air 2 to the 256 cellular 10.5 pro. I also have a mini4 and a 12.9 first gen cellular pro. I feel like the 10.5 is the perfect size. I am a speech pathologist and use my iPad for therapy. I was using my 12.9 but it was a bit too cumbersome to carry around all day and the air 2 was too small. This 10.5 is perfect. The fact that it's the cellular version is just icing on the cake.