If it is working for you, that is great. We all tend to give advice from the point of view of our own coop.
I will point out that the OP is in SW Michigan, which can have considerable winter I assume.
"Southwest Michigan experiences heavy lake-effect snowfall, particularly in areas like Berrien and Van Buren Counties, with an average of 80 inches of snowfall annually.Cass County sees an average of 60 inches of snow." Google
So if that door is open on that coop in a snow storm, the coop will be filled with snow. If that door is closed during bad weather over a couple of days, that is going to be tight with 5 birds in there.
Mrs K
I will point out that the OP is in SW Michigan, which can have considerable winter I assume.
"Southwest Michigan experiences heavy lake-effect snowfall, particularly in areas like Berrien and Van Buren Counties, with an average of 80 inches of snowfall annually.Cass County sees an average of 60 inches of snow." Google
So if that door is open on that coop in a snow storm, the coop will be filled with snow. If that door is closed during bad weather over a couple of days, that is going to be tight with 5 birds in there.
Mrs K