I used Nextgen ScrollGallery (same plugin author) for a long time and I loved it. As it’z not supported anymore and as advised by the author, I have tried BMO-Expo.

I kinds of work but it not good enough.
– Lack of info in the settings (some stuff is just not understandable)
– FAQ is terribly poor
– I tried to customize CSS and got nowhere (although I’m used to customizing CSS plugins)
– Author hasn’t reponded to posts for at least a year.

Maybe Benedikt you are sick or have problems. If it’s the case, I truely wish you the best.
However I would prefer that a plugin is retrieved from WordPress when it can’t be properloy supported.

Fran