Previously I've used the free version Catch on mobile and desktop with zero problems, but then Apple bought them out and shut down the service. I migrated everything to Evernote just because they're the de-facto note taking service; I didn't want to have to switch again.
After using it for a while I discovered its flaws, like having your notes be inaccessible during their weekly maintenance Wednesday evenings. What is this, the 90s?
Anyway I couldn't complain too much because it was free. Now that they're hitting us up for money I'm inclined to just pay them the $35 yearly fee so I can access it everywhere and start complaining. I tried Google Keep but it was extremely bare bones; the notes couldn't be shared and were limited to less than 1K of text.
In any case, it's better than pen and paper--these notes never get lost and are easily searchable. If those features aren't useful, you haven't taken that many notes!