Eh...not too bad, I'd put the rafters 90° from what's shown for open soffit ventilation.
Not so easy for cleaning and/or grabbing birds for exams off the roosts at night, unless you are far more nimble than I.
I'd not put more than 6 birds in there.
Did you forget to hit save at the bottom?
OhBoy...better get humpin'!
Beware that many plans for coops are as bad as the prefab one....too small, lack of ventilation, lack of good keeper access.
Most are rotten designs and substandard construction.
A decent one will cost a couple thousand dollars.
Well worth the time and effort to build your own....
...and great lessons for your kids.
How old are the kids?
Do you already have chickens?
What are your goals with chickens, how many, etc...