I have always used Evernote sparingly. But I have used it for short-term notes, and I have not found it problematic. I know that many people use it as their main application for notes. If you do, you might want to read this, and especially this. I cannot say whether the problems reported are pervasive, but as they say in German: "Vorsicht ist die Mutter der Porzellankiste" or "safety first" (literally "caution is the mother of the porcelain box").
No further comment!