Here's a less biased review, fairly informative:
http://arstechnica.com/gaming/2013/06/o ... e-console/
And another take on it from a non-reviewer who compares it with the Raspberry Pi:
http://www.reddit.com/r/gaming/comments ... eone_that/
"I bought an Ouya, second hand from someone that was a backer. I paid $100 for the Ouya, everything that originally came with it, and an extra controller. The guy I bought it from mentioned that he just didn't have enough time to use it and hoped I would get good use out of it. He was friendly and offered some help if I needed it while setting it up.
I took the Ouya home and set it up. Setup was really easy. Plug in an HDMI cord, plug in the power cord. Follow the onscreen instructions and you're done. I googled how to install XBMC on the box and had it installed 15 minutes later. I also downloaded a couple emulators and had roms up and running in no time, along with a couple other Ouya games (mainly Bombsquad).
XBMC runs flawlessly for me, over Wifi, in my bedroom. The menus are quick (much faster than my Raspberry Pi that I use in the main room.), videos start right up, and everything just works. As I mentioned, I also have a Raspberry Pi with XBMC. Videos that are choppy on my Pi run smooth on my Ouya (these are mainly large files with 3D, or with surround sound. My Pi is hooked up with ethernet, my Ouya with wireless n).
Games have been great. No lag, and my girlfriend has loved playing Bombsquad and other classic games. She also loves that she can use the controller and navigate through XBMC a lot easier than she was able to with my Pi. That's where the key difference lies between the Pi and the Ouya. The Ouya is easy enough that anyone can use it to do whatever they want. The Pi just isn't. I would have to have separate SD cards or partitions to get the same type of functionality on my Pi that I get with my Ouya, combined with a wireless dongle, bluetooth dongle for PS3 controller, case, and SD cards, which in total would end up costing about as much as the Ouya does anyways. Setting up and using a Pi isn't for everyone as well and can even be a headache for those who know what they are doing.
Now for the hype. If you honestly believed this would compete with the Xbox 360 and PS3, as compared to competing against the Pi and other boxes like Apple TV, Roku, Google TV, then you shouldn't be allowed to make your own purchases. People hyped this up way beyond what the kickstarter claims are. Read the kickstarter again and you will see that the only mentions about AAA gaming are that Ouya could possibly change how people make games by getting rid of publishers and licenses. There isn't anything in there that says you will get the comparable performance of a current gen system.
Compared to other boxes, like the ones I mentioned before, Ouya is the clear winner. I've found it to do everything and more than what those other boxes do, and all for the same price. So lets stop with the blind hate towards something most of us don't even own or seem to understand. Sure, it has it's negatives, the d-pad on the controller absolutely sucks and my A button seems to stick, but nothing about it is as bad as people are making it out to be. For what it costs it is a great, complete, easy to use system."