Samsung SmartThings hub support (using a dongle) is coming. It's also compatible with the GeForce Now game streaming, a service from NVIDIA costing $7.99 per month. Many android apps can be successfully sideloaded if not available on the store. The Shield Android TV supports Youtube, Netflix, Google Assistant, Plex, Kodi (or the optimized SPMC) and many other Android video-streaming apps and games. The 2017 editions come with an always listening games controller that offers Google Assistant support.
It comes in two versions - a 16 GB version for $199/£199 and a 500GB version for $299/£299. The NVIDIA Shield Android TV is a high-powered Android TV device, featuring a Tegra X1 and 3GB of RAM (source).