For those who have instructed or at least who have flown a trainer enough to have moved on from them, I'm curious if there is a consensus on what makes the ideal trainer. I'll offer a couple of my thoughts and look forward to hearing from others.

1, Very predictable flying characteristics. I don't want a trainer that is twitchy or makes unexpected movements in response to wind turbulence.
2. Good visibility- trainers need a trim scheme that is very easy to orient at a distance since new pilots often fly too far away from themselves.

What else do you guys like to see in a trainer?