Recent GM here. Lately I have taken to not opting-in for EC seat “upgrades” and instead sticking with preselected aisle seats in the exit row for most domestic flights. Main reasons being I like to be able to get up anytime without bothering others (upgrades could throw you in a middle or window seat) and the leg room is generally more spacious. Though I am not that tall, just having room in front makes you feel less crammed in - plus no one can recline into you

Curious where others side on this issue? The new boarding zones does have me thinking about it again.