For many of the reasons mentioned above, EC is close to be the "perfect" instrument. Unfortunately for me, having grown up with piano keyboards, woodwinds, and strings--where adjacent notes are immediately, well, adjacent!--I could not fully adjust to the alternating hands layout of EC. I love EC, and SO wanted to make it my primary...but I started on anglo, and along with those other instruments where chromatic scales are adjacent--I'm accustomed to having the notes always right where they are "felt" to be--rather than on alternating hands.
And so, I'm left with arranging for anglo, but I play a bunch of other stuff--so I'm not needing my free-reeds to be chromatic. I usually play repertoire that I formerly played on EC--on flute or other woddwinds