pre-5.0 rock-solid. 5.0.1 Mac has been crashing randomly for days but recovering. 5.0.2 killed Evernote today. Had to reinstall. Secondly, there is a bug on making new notes (post-5.0) within the app. When you enter text for the note title, then hit "enter" or "tab," it closes the note and you have to find it in again in the list.