Get all your Goodreads re-read dates and book genres -
https://github.com/PaulKlinger/Enhance-GoodReads-Export
Download this little .exe file and point it to a recent Goodreads Library Export .csv,
when it's done going through the whole export you will see that it has appended a genres column and a read dates column. You will need to do some editing in Excell to format it, but once it's formatted, you can easily add it to Calibre and fill some extra date and genre columns.