My Voyage got retired last weekend when I opened my Libra 2.
To be honest, in daylight I still think the Voyage screen has the edge but there's very, very little in it. Since I do most of my reading in the evening the Libra 2 with the warm lighting is an absolute game changer.
And much to my annoyance as a former Kobo-hater, it's an awesome device.
In fact I should really write in the Kobo sub-forum and beg forgiveness for my previous doubts.
Borrow your mate's Voyage for the weekend, you'll buy the Libra 2 on the Monday.