I have bought 2 Libra's but both have the most uneven screen you can imagine. I've returned both as I did with several Kobo's in the past, should be 10+ for sure. I'm willing to pay for a good device, no problem, but immediately will return my new devices if they don't have a screen with good lighting.
The one I returned today had terrible cones coming from the side with the buttons. I thought this was a problem from the past but Kobo still hasn't resolved this one!