I had an older Roku Express and this 4K model is in a totally different class. I can now turn on/off my TV and control the volume and mute. With the Tablo app I can watch my OTA local television channels and record one show while watching another. Before this model I had as many as four remotes to watch TV. Now I only have one remote and that is the new Roku Express 4K+.
I purchased it in April 14 and it arrived May 17. The acquisition was to replace my Firestick which just stopped working. My previous device would freeze up, drop the internet connection. I have a few ROKU devices in my home and my experience is wonderful.