The last two AirBNBs had new TV with Roku built into the TV. I have to say they worked fairly well.. a little slow, but not bad at all.

I have a Roku at home, but also an nVidia Shield. The Shield is fast, but it has a lot of problems. First is that you must install an app to disable the Netflix button. If you enter Netflix, it does not easily let you leave the app and the button makes it far to easy to accidentally enter it. Second, the YouTube app on the shield has a weird problem where it goes into some kind of stagger mode where it updates the screen only every few seconds (maybe it gets into this mode if the bandwidth is temporarily too low). You need to rewind the video to get it to play again properly. Finally the triangular remote is terrible- it's falling apart.

Roku has none of these problems. I should say I have the older RF Roku remote, not the newer cheap LED one.