It is possible to protect with password only sections, but never a complete notebook nor a single page. The web clipper is slow and has nothing to do with that of Evernote, so bad that the version for Safari has been removed (so, not a significant loss). THE BAD: search engine is cumbersome compared to that of Apple Note, and neither written content in attached documents nor hand writing is searchable. Moreover, It works very well in the iPad with the Apple pen. Contents are accessible also online through the web browser, and synchronise quickly (the Windows version, strangely, is not so efficient at it). Single pages have no virtual limits of extension and are compiled through separated text boxes. I find layout and colours scheme very pleasant and functional, so it is easy to divide and classify every single piece of information. It is possible to create tons of separates notebooks, everyone of them divided into sections, and every section into pages.
THE GOOD: it is the best concept of electronic filofax available free of charge. Please take into account that the Mac version is reduced compared to that for Windows, and my review is referred to the Mac version. It is possible to talk very positively, or very negatively, about it yet telling the pure truth.