maybe can consider Unifi Air Biz 5G, my customers using it and so far so good

for high rise building, normally fiber internal wiring not belong to unifi/maxis/TIME so if any problems with it, either building management or tenant/owner need to bear the re-wiring cost

recently I have 3 customers need do re-wiring (2 old buildings and 1 new buildings) and one of them is a tenant but need pay RM7k for re-wiring because building management and landlord no willing to bear the re-wiring cost