I have a Kobo. I find it to be pretty similar to the Nook I had before that burned out. I actually haven't used it in about a year.
I also have used Overdrive from my library, but for whatever reason mine requires downloading the book file on a computer, loading it into Adobe Digital Editions, and then syncing that to the e-reader, which doesn't always work. It's honestly a pretty huge pain.
I also have a first gen Kindle Fire. It kind of sucks as a tablet, but it worked fine for the books I got from the Kindle Lending Library or whatever that's called. That one hasn't been turned on in about 2 years now though.
As you can probably guess, I have mostly given up on reading books on these.
