[GeoffR]

There is no need to use the Kobo desktop software at all, everything can be done via wifi from the device without ever installing the desktop software. It does have lots of bugs, but who cares? Just don't use it.

(Edit: Actually, some of the earlier Touch models did need the desktop software to do the initial setup, but later Touch models and all Mini,Glo,Aura,AuraHD models can be setup via wifi without ever installing the desktop software.)

Some kepubs have space between paragraphs, some don't. This is nothing to do with the device, but with the way the individual book is formatted. You can always edit the book and sideload it if the formatting is not the way you like it.

As for other bugs, which ones were a problem? There are still some bugs in the current 3.3.0 firmware, nothing that inteferes with reading of kepubs or sideloaded epubs on my Glo, but it will depend on which features you use.