Walk-in or reach-in, that is the question...
Well, if everything else being equal, I would drive a Mustang GT convertible, but I drive a Civic instead, happily.
For my flock size (+-9), I went with the reach-in. Just make sure there is a big door (3'Hx2'W on mine) and you can reach all corners. Mine is also off the ground so leaning in (and sometimes crawling in) is easy enough.
Well, if everything else being equal, I would drive a Mustang GT convertible, but I drive a Civic instead, happily.

For my flock size (+-9), I went with the reach-in. Just make sure there is a big door (3'Hx2'W on mine) and you can reach all corners. Mine is also off the ground so leaning in (and sometimes crawling in) is easy enough.