No point..

If ur area are congested, it might dropped to at most 70% of ur curent speed during peak hours.

Huashit B618 if u r using a SIM card instead of optic. For optics, i dunno much and any of k/ can share the best out 1k-ish router if not too much?

It is very subjective. Some area that are congested might not see such speed during peak hours and if u r staying near a business or industrial area, u might be able to have a sustainable speed accross hours. But not in a dense residential area where everyone is chipping bit of the bandwidth together.

If we're to subscribe for Unifi, if there is any contract we need to tie up with TM? I might want to try the 800mbps first n see weather the speed will be reliable and will not drop to 50% during peak hours, only then i will consider to continue the subscription. It is not fair for us consumer to be present with less than 50% of the stated speed during peak hours since we're not some nocturnal to be active during night time.

Actually, this result kinda good already if u compared wif me. My house barely within unifi air coverage but after using B618, now i can watch 2k video during peak hours while previously using DLink router, 8mbps was a luxury already n most of the time Utube stuck at 480p res only. Averagely, my internut speed will revolve around 20mbps ~ 30mbps during peak hours, thanks to B618 powderful antenna and the is the best buy eva eventhough ive snapped the modem early this year thus cost me around RM900. No regret.