A couple more impressions. I've read a bit on my new Oasis now. It's considerably heavier than the old Oasis, the aluminium back is pretty slick and cold. It's not heavier than my Voyage (which I always read with the cover on), but it's less comfortable to hold. This actually surprised me, because the first Oasis feels super comfy in the hand. I think I'll have to improve the grip somehow, but I don't want to add any weight, so using a cover is out. Perhaps something like these?
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Otherwise I like the new Oasis, despite the uneven screen. I can live with the gradient, my Voyage is blotchier. Exchanging it would be a real pain, given where I live.
As for battery, haven't noticed any abnormalities so far, but then I haven't used my Oasis much yet.