I had version 16 that I use from time to time. As always efficient but nevertheless a lot of corrections to make (especially hyphenation hyphens words). 18 with no major changes. For cons, the treatment is a priori much more efficient: each page is scanned to verify and correct to the user. It's long but can be corrected immediately, before the Word text is edited. The game is worth the candle, as it is guided on misinterpretations. Conclusion: if you use "raw" remains powerful but no reason to change the version, if you use it with preview and editing, it is remarkable because the treatment can eliminate nearly all artifacts that interfere (numbers page under unnecessary titles ...)