I'm really happy to finally see the Spotify app in the Tizen SmartHub. Sadly, I have to report a few issues for version 1.0.2:
While not logged in the app on the TV (at the steps explaining how to connect), Spotify Connect is not working (devices on the same WiFi network), the device is not showing up in the Android and Desktop app. If I login with the same user on the TV app, the device shows up in the devices list.
Volume adjustment is not working for the TV from the Desktop and Android app, only by the TV's remote control.
The app is sluggish when switching between browse and Now playing with album art sections. (might be the TV's fault, since other apps aren't snappy either...)