I love used tabula and recommend Camelot over it. The Camelot folks even put together a head to head comparison page (on their website) that shows their results consistently coming out ahead of Tabula.
My other complaint with Tabula is total lack of metadata. It’s impossible to know even what page of the PDF the tables are located on! You either have to extract one page at a time or you just get a data frame with no idea which table is located on which page.