One fundamental feature that was missing from Kobo before was a search functionality. Has that been fixed?
I like this website.
http://www.the-ebook-reader.com/
It has a lot of video reviews so you can compare. Its blog also has a lot of interesting tidbits about ereaders, such as this:
http://blog.the-ebook-reader.com/201...-prs-t1-video/
This website also has video reviews:
http://www.mobiletechreview.com/
The two websites favor the T1 very highly. Personally I prefer Sony because of their comparatively fuller feature PDF reading capability. Also, if the search function of Kobo is still missing, then Kobo is a no go out of the box.