I've checked in a change that should reduce the minimum required size of several of the windows (754px height for the largest window, now)--hopefully you guys will see improvements in the next release!
For anyone wanting to see issues that are on our radar (or to add them to our radar somewhere other than this thread) we're tracking activity on https://github.com/dashnine/PaperBlossoms/issues .
Thanks again to everyone for sending feedback!