I wouldn't have purchased one myself, but I received mine as a gift half a year ago, and have enjoyed it. I've filled it up (well no; haven't come near to filling it) with old space operas and commute reads that I might otherwise have consumed as mass market paperbacks, and with political ephemera (presently reading Nixonland). I can't offer comparisons with the competing platforms, but I'm well pleased with this one as a dedicated reader: compact, lightweight, great battery life.
cordially,