Ouya
Here are some issues that I immediately noticed when I first got my Ouya:
* Poor WiFi reception. It has a tiny WiFi antenna inside a metal box.
* Poor controller design. Bad D-pad (Xbox-style), and buttons that get stuck under the faceplate.
The Ouya has been out quite a while. I still don't know where to download the factory image for it. It makes it really unsafe to hack the device if you cannot go back to defaults.
Also, you still cannot buy games/apps online from your computer or mobile device.
Before I could ever update this page with real information, the Ouya was abandoned by its creators. Sad.