[ArmorDog]

For what it's worth: I did not update the desktop application.
I just connected my Kobo to the wifi network one day and it said "There is a firmware update!".

I like it. Navigating menus feel snappier.
Turning pages is about the same, but there's a serious lag between a page change and your next command. That is: you turn the page, then press back. It waits about a second on the new page before going back.

I assume this is caused by writing the current page to the database every time.

This is further backed up by the fact that I have never lost my place, even when the battery ran out in the middle of reading.