The Nvidia Shield is hands down the best Media Server currently. Very responsive. Much quicker than the Fire and Roku and any Smart TVs thanks to the fast processor and plenty of RAM. Love the AI upscaling and Find a lost remote feature on the 2019 model. No more hunting for lost remote controls. The lights on the remote are also handy while operating in the dark. As this is running Android TV it also allows you to add a large amount of third party applications with ease.
The unit can also be hidden from view inside a cabinet as you don't require a line of sight for the remote.