OK, after a few weeks of using v10, or not using it much really, because it made doing everything I did in the 'legacy' version so much harder, or even impossible, I've reverted to the Legacy version. All I can say is, it's a breath of fresh air. Sure, I was a bit tired of the dated looking interface and sometimes slow search, but having used v10 for a few weeks, damn, the legacy version is the nuts! It handles scanning, especially from Scansnap a million times better, you can search in text (including encrypted/decrypted text), it'll actually start with windows and sync, I can find stuff in the folder lists far more easily, the preview is better, etc., etc., etc.
I've been a paid Evernote user for a very long time. As feedback, all I can say is, Legacy version rocks, v10 is useless to me. I will not pay for it. I have to at least give Evernote some kudos for not committing suicide and at least releasing the 'Legacy' version. Without that, I am sure users will simply abandon EN with haste. At least with this available it gives EN a chance to catch the new version up with all the stuff the 'legacy' version already does, did, and good old paid loyal users rely on. What is it they say? It's 10 times harder to aquire a new customer than keep an old one? EN, you really should read up on that one.
I've uninstalled the v10. Honestly, it did nothing for me, at all.