I'm new to Sigil and new to this import plugin. Just used it for a full-length novel newly OCR'd and proofed in Writer. Works very well. (Much better than the Calibre odt conversion, which is unmaintained.)
Main thing I like: it keeps my css selectors intact, exactly as in the odt file. It does not generate any css with them, but I simply dump the example css, pull in my custom css, and it works. It uses <i> for italics, not some invented <span> code like Calibre does.
Splits the file on <h1> tags. That is sufficient; in the future I'll add dummy <h1>s to get any extra splits I want--for a dedication page, for example.
Very quick, very clean.
