Thanks for the much needed help all of you!
What I'm specifically wondering is if it's possible to keep using 7.14 (EN for Mac) and install the new app side-by-side to see whether or not I want to start using it? Or will 7.14 (most likely?) disappear as soon as I install the new app and then I need to go back and install the Legacy App? Any reason to stick with 7.14 and not trust Legacy in the same way I trust 7.14? My iOS experience after the update has been completely awful so far so I'm very reluctant to just blindly update the desktop app on a whim - my Evernote workflow that's 10 years in the making is at stake here...
And everyone referring to the Legacy Version - my understanding is that Legacy is just an interim solution during the transition to the inevitable New Evernote, and not a more permanent alternative...? How long are you expecting Legacy to be around?