guess so, my wife watches netflix in 4k, and my son youtube (1080p), while I download torrents, play ps4 online, streaming to twitch. and it all works flawlessly. torrents still download at around 18 MBps - 144 Mbps while in this scenario.
when i first got this speed hooked up, the modem/router wasn't able to handle the above^ scenario, so i got the asus ac2400 router and works great. on my samsung galaxy s5/new laptop i actually get 1 gb/s link speed through 5g wifi. never had wifi that is just like a 1 gb/s ethernet connection, no interference or anything, plus it works a block away lol.
forgot to say, put my modem into bridge mode before hooking up this router,