I bought this to upgrade my previous version Cube. It is easy to set up and much faster than the older version.
One problem is that you can't clear the cache on your apps. I have tried it from settings/apps and when you select it nothing happens. This needs to be fixed. I don't think you should have to uninstall and re-install your apps just to clear the cache. Another thing I have noticed on my Samsung 4K tv is that the picture gets darker. If I go in to my TV settings I can reset it and maybe it is my tv but this never happened before I set up the new Cube.
Update: I forgot to note in my original review that I was really disappointed that this did not come with an HDMI cable.
Update 10/18/19: Amazon customer service was great and called me regarding the clear cache problem. There has been an update and it works fine now. I have changed my rating as the follow up was great and she was very helpful with any questions I had on any of my echo devices.