How many device need for wifi full coverage?

Very nice achievement. What number of concurrent users with total traffic do you see?

first, Thank you very much for helping me in this project
about 48 smartphones for internet hotspot and 10 smartphones for VOIP Asterisk ( installed in one of Basebox2 with OpenWRT METAROUTER ) the total bandwidth for internet is 170 Mb/s.

Good job.