Got my Cybook too.
Though I never had an eBook device before and don't know people who own those for comparison with other devices, I feel that I made the right choice with this one.
I like both the Design of the device and the placement of the Buttons (it's exactly the way I hold books when im sitting lazily on my couch
) - though I agree that the navigation button could have been much nicer if it had been one of those found on Mobile Phones or Playstationcontrollers - and turning the delete button into a shortkey to the bookmark menu would also be appreciated. I don't mind the plastic outlet - though it is pretty lose on the left button side thus resulting in creaks when holding it there.
The supported file types include the ones I require - I prefer html as it is the one easiest to convert and reuse, though it would be nice if Bookeen would support more elements, as neither toc support (by parsing the h1-6 elements) nor metatags (html intrinsic, dublin core) are supported at the time being.
So far I've read a whole day nonstop on the device without any eye problems I usually get when reading digital text. This alone, though it is more a benefit of the used eInk display than the Cybook itself, is worth it!
However I discovered some problems. One of ten page turns the device does not actually turns the page although it does process something as can be seen by the green activity light. Pressing the page turn button again will then do the trick (is that the same problem You discovered, ashalan?).
At the beginning I've changed the fonts several times to see whether I actually like a serif or sans-serif font better. This behaviour (after 3 or four repeated changes) lead to a crashing of the device in that the display froze at the last displayed screen and the device was definitely off (no button response pressing the power button resulted in the startup process). This is reproducible (deleting the font cache doesn't help).
Sometimes the device does not remember the last read page when jumping into the library and back. Over a period of several hours the last remembered page did not change - no matter to which page (first, last, inbetween,...) I turned. However after an irreproducible crash while turning pages it worked again.
These problems might only be related to html pages since so far I've read content in that format only.
The device also does not remember its Flashing Refresh setting. I prefer the no refresh setting since the remaining text fragments kind of feel like reading a real book or a newspaper with thin or semi-translucent pages, but I have to reset this setting every time since its set to on the next time I power the Cybook off and on again.
However after my initial play and discover period and once I switched to reading, I was pleased with the Cybook. I think it is a pretty good device - and will become even better, once Bookeen improves the stability and adds some more features to its html part (toc generation from structure elements, display of current page, metadata, ...).
Besides: is there a possibility to zoom in/out when viewing pictures?