I've tried Evernote for a while with various strategies. Time machine saves you if you have an always on machine with Evernote permanently syncing. If you can't have that setup, for everything you do on the go or not on your mac, you won't have a back up.

Depending on how you do it IFTTT can help save notes to other services (you have to save the note in authorized notebook if I remember well) but it's still a PITA.

Globally having Evernote feed another system reliably seems to be really tricky, as nowadays having two cloud based system play nice with each other is usually a world of hurts.