So, you're aware the AP's do have a bit of magic to them, We are covering the below space (marked with an A) with only 13 APs. The building is 3 stories above ground, 1 below. with a bit of coverage external in the rear due to programming concerns with vehicles which are "dead on arrival". we placed our APs based off of Heat maps we built a few years back. This setup provides reliable access to 190 client devices. in our most mission-critical areas, we use R710-R720's. these APs are absolute ROCK STARS when it comes to high-density areas where we have to provide ROCK solid client performance to our employees who meet, greet, write service on the Wi-Fi.
![Image_ images_messages_5f91c44c135b77e247a0e038_efffcf3ada03aed50afafad44e5c3d7f_RackMultipart20190717100236kx0-1521537c-62ab-4be2-9b96-6a517deb618e-1785543133.png1563382639 Image_ images_messages_5f91c44c135b77e247a0e038_efffcf3ada03aed50afafad44e5c3d7f_RackMultipart20190717100236kx0-1521537c-62ab-4be2-9b96-6a517deb618e-1785543133.png1563382639](/t5/image/serverpage/image-id/1662iF94D41DBCF8B8E14/image-size/large?v=v2&px=999)
We have another site, which is more open and in a far less dense metropolitan area which gets away with just 4 APs at the
it has 3 fewer floors, and we support less than half the clients, and we have a different customer reception strategy ( where the clients aren't greeted by a Service Professional with both diagnostic and a surface pro on their hips)
![Image_ images_messages_5f91c44c135b77e247a0e038_ee0aa1e4ae4181e72d9fc977e73537d8_RackMultipart2019071795824r37d-0d4023b4-77fe-4e9c-98d8-2304ff7c714b-469551647.png1563382656 Image_ images_messages_5f91c44c135b77e247a0e038_ee0aa1e4ae4181e72d9fc977e73537d8_RackMultipart2019071795824r37d-0d4023b4-77fe-4e9c-98d8-2304ff7c714b-469551647.png1563382656](/t5/image/serverpage/image-id/1663iEBA9E5162BC75F37/image-size/large?v=v2&px=999)
In closing, I'm unable to speak to what your experience may be(And, I'd hate to accidentally give you bad guidance), but I am able to show you two examples of my own. I hope that helps you somehow.