Yep, it's just my opinion

based on the many 'failures' I've seen here.
You needn't agree, nor
take offense(unless you really want to).
ETA: the 'bad' design I was mostly referring to are the typical prefab coops that are copied overandoverandover.
Your design may work fine for you, and it's much different than most external nests.
At least the nests are covered somewhat with the roof overhangs and don't have a hinged tops.
Curious how long you've kept 20 birds in that coop and what your climate is?
Also if a bear has
actually tried to get in there.
Here's how to add your general geographical location to your profile.
It's easy to do, (laptop version shown), then it's always there!
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