Bad news for wifi users, this is my result.
218Mbps Down and 102 Mbps Up

Using 5GHz Wifi on Samsung S7.

Tried on 80, same results(actually worse, but i attribute that to margin of error). But I don't really use the wifi, I routed cable for my desktop and TVs. Only mobiles are on wifi, not too worried about getting full 500Mbps on them.

But I can understand others who depend on wifi, maybe they might not get the full speed on it.

I didn't manually choose, auto selected some U-Mobile server. Don't know if switching to a Telekom Server would help.

Edited: Okay switch to a webe server in PJ. Results as attached.
537Mbps Down & 103.02Mbps Up

My apologies, I miscommunicated. That result is for wired. Previously all my test on desktop was with some U-mobile server in KL (auto selected), wanted to see switching to a nearer server would affect result or not. Now seems like can get 500mbps as advertised.

As for wifi, tried manually choosing webe server, switched manually to 80MHz width, link speed at 433Mbps, still getting on average 200+mbps only. Possible that my phone is just old, I don't have any other newer gadget. Not sure what modem is in exynos chipset, could be the culprit.

Hope that clears things up a bit.

If you mean my AP router, it's tp link ac1200. If you mean router and antennae in the phone, then it's out of my league. I really don't know.

TP Link AC1200, original supplied by TM. Maybe this is an entry level router. There's only 2 antennas, I guess one 2.4 the other 5? So I guess cannot have 2 5GHz to maximize the speed? I still need the 2.4GHz to cover other parts of the home.

But again, WiFi is not an issue for me, don't really need 500mbps for my phone haha. Janji tv stream YouTube and Netflix cantik with cable.

Just add more information, beamforming are only available on EU firmware, if you are not messing around the firmware, then it should still be TM one.