I have just under 15K notes and have been a Premium customer since 2008, however, these days I find myself barely touching Evernote at all, and have switched to primarily using Notion.so, with Pocket and Zotero for snapshotting/handling research, and a bit of Dropbox Paper (I had a soft spot for Hackpad).
From my perspective, Evernote has gotten consistently worse over the past few years (some of this is due to the core product not scaling as people put more notes in - the search craps out and the organization sucks):
* No way to easily exclude say web clippings from search; in general the search results are inadequate (and doesn't factor in recency or frequency appropriately) of cache things intelligently - this effectively makes Evernote a PITA for anything but write-only usage
* Rather than helping people categorize things, they've made it progressively harder by making Notebook organization clunkier. I never got into using tags because it didn't make very good suggestions, and there's no hierarchy. With dysfunctional search, in the end it's all just a "pile."
* The original appeal of Evernote was seamless syncing across all platforms, but I'm almost entirely on Linux these days and there's no official client or good alternative, and the web interface is awful. That pretty much killed my usage for good, but every time I launch the iOS app, it seems to launch slower. There's way too much friction for creating notes.
I'll probably be exporting and cleaning house sometime soon. While the web clipper is great, I can probably find a better alternative (or just switch to Zotero for everything, as it does fine page snapshotting and the collections/subcollections largely work like you'd want). The OCR is probably the nicest thing I'd miss, but besides occasionally scanning some receipts or other papers, I'm not sure there's anything else I use it for. Also, their security/privacy updates from last year also made me hold my nose.
There are some neat open source projects that have started up recently, but I'm also starting to think about my notes and research in a more long term view (keeping and syncing, but also publishing).