[vanderZwan]

It's worth doing so on older kobo readers in my experience because it turns pages faster, and it also correctly displays embedded ePub fonts that the native software doesn't. I don't know how many of you will ever read books that feature APL glyphs so I don't know how relevant that last bit is, and I can't speak for more recent models.

[SSLy]

stock kobo has two epub readers. trash one from adobe used for drmed files and stock epubs, and an actually good one for use with KEPUB files. There's a calibre plugin to make the conversion upon push to the device.