Even though it is cheap but the fact that 5G router cost between 1.5~2k, I dont think it is a good deal unless you are going to use it as a hotspot with your phone.

I think YES is a better deal at RM99 with a free 5G router. Too bad I signed up with Celcom Home Wireless 5G at RM149 before YES introduced the price cut.

Time also not all good ya .. my apartment always have user complain downtime during working hour, those WFH all complaining.
At least for telco, downtime should be lesser, i dont think they will shut down a tower for maintenance let all user nearby lose connection.

For the disadvantages u mentioned, u just need to get a sim to test out the connection speed and coverage.
If u dont get 5G with your hp, yes u should go with fiber.

Actually for 5G wifi router they are not really expensive, the typical NR5103E from shopee cost around RM500 and u get decent wifi6 connection (even better speed then average rm200-300 tplink wifi router)