Been using my Co-Pilot for a week, and I find it the ideal bag for everyday carry for iPad users, all models. I'm really picky on bags, and I haven't found any issue with this one. The assembly and finish are outstanding, the design is really convenient even for my large hands, and every pocket is super accessible.
If you use an iPad mini, the two large pockets in the main compartment are the perfect size to store it in vertical position, and it rests on a reinforced seam so the bottom of the iPad doesn't hit the ground directly when you put the bag down.
If you're a user of the larger iPad, it fits very nicely in the main compartment in horizontal position, but it also fits in vertical position, which is great if you want to pack a bulging pull-over in the other half.
On the occasional day where I need to take a computer to work, the 11" macbook air fits really nicely, and I tried a 13" macbook, it just fits but you can't easily close the bag.
And even after I put my two iPads in there, there's still room for a full change of clothes (I bike to work), power supplies, large wallet and a bunch of useless stuff I carry around.
Hope this helps iPad users.