WiFi HotSpot solution based on OpenSource - which is better?

Question

open source

There was a task: to build a HotSpot infrastructure in one small settlement at minimal cost, quickly and to the maximum using the existing hardware. The task was set by an Internet provider that already has a well-developed infrastructure in this locality and wants to add one more service to its customers. For existing customers (they all have a username and password) - completely free as a bonus. For potential customers: with prepaid cards or free of charge but with a very limited speed (or time?).
From the available radio equipment: a bunch of Mikrotiks, a little less of all the good stuff from Ubiquity Networks, a little less - LinkSys with OpenWRT on board.
Upon first consideration, I have a solution with ChilliSpot + FreeRadius (for example, like here, but, since I have little experience in this topic, I decided to consult with the powerful mind of Habr:
- On the basis of which OpenSource software is it better to solve this problem and why?
- What pitfalls / surface rakes can you stumble upon here and how to get around them?
- What should you think about in advance?
According to the results, I promise to write a report on the implementation later, so that the time spent by the respected Khabrazhitels will result in a description of a specific well-worn path, which others can easily follow later.
What will be the thoughts?

Answer 1

Something I have the feeling that the questions somehow float past the field of view of most Khabrazhiteley. Judging by the lack of feedback...

Answer 2

We use pfsense which is spinning on an old PC. It can do a lot of things out of the box (especially the second version) and is configured via the web gui. But this is a freebsd-based system, and therefore we want to get away from it and switch to zeroshell.

Answer 3

A bunch of Mikrotiks, use them.