I have a Kindle Oasis right now that I want to get more use out of, but also can't stand using Amazon products (and have found the Oasis increasingly frustrating as of late, especially as I download more content from non-Amazon sources for my classes). Can any Kobo owners speak to how much of an improvement it is over the Oasis (or any other more recent Kindle)? Should I pre-order the Color or just get one of their existing models?