Hope this helps. We have Roku3 and subscribe to HuluPlus. We also hook a laptop to TV with HDMI and watch show with that.
We have two Ruku3 devices and both are now over heating and require frequent rebooting. (Unplug the power and re-plug) we’ve run them off of AC and USB power. USB power worked great for about a week, then it also needed rebooting just like with AC power.
We now use the Wii U for NetFlix.
My computers all have Amazon Prime and Netflix also. That and primewire.ca is enough.
IMO, I think Ruku3 is not ready for primetime.