I have a nit. Actually  for my use case  it's a serious problem. As advertised  it does seamlessly connect with the calibre server on my local network. However  it (or maybe the install of FBReader Pro) removed the calibre server on a potentially external network  and I'm having trouble putting it back. I don't think it should have taken away a feature I had working. In other words  typing in the URL was a major pain  partly because it is not documented that the URL is different for FBReader than for a browser. It is now easy  if it's a URL on the local network. (You have to add /opds for FBReader). Typing the URL for a non-local network is still a major pain  if possible at all  and this plugin or some other part of the FBReader infrastructure is making me do it again twice.
September 21 2015