Besides the obvious standard perks of any e-reader vs. paper books, things I like
specifically about my new Kobo Glo:

The gorgeous
design: flat white front (and the white is more vivid and "whiter" than white iPads/iPhones, by the way, which I've always found just a tinge on the yellow side) and beautiful blue, sturdy, quilted back. A pleasure to hold and to behold.

The evenly distributed
light, which can be set to amazingly bright levels.

The fact that it uses
MicroUSB just like Kindle and most smartphones, instead of a proprietary system. I can now reuse my old Kindle's cable.

The fact that I was able to buy it in a
store here in Belgium, a physical place I can go to if I have issues with it. Sure beats ordering a Kindle Paperwhite from the U.S.

One thing that could stand to be improved, I do want to point out (but not a deal-breaker), is putting books on shelves. On my old Kindle, when
shelving newly-added books, I had the option to see only the books that were not already on a shelf. Whereas on my Kobo, I always got the same list of *all* books to sift through when recreating my seven-or-so shelves. But that was just a one-off inconvenience on day one of setting up the device.