I discovered RocketBook through a co-worker just after their original Indigogo campaign ended. Since there was no way to get a notebook at that time, I downloaded their PDF, printed out a bunch of copies, and comb-bound them together to make my own.
I have to say, the system works pretty well. You simply write on the page, check off an icon on the bottom of the page to indicate which cloud service the note should be sent to, and then you snap a picture. If you send your notes to Evernote (which is what I mostly do), Evernote OCRs it and makes it searchable (and the OCR is pretty accurate…though my handwriting is fairly neat, YMMV).
The FriXion pens work pretty well, too. They write smooth and don’t smudge, at least on the regular copy paper my notebook is made from. You can erase them by using the hard plastic nub on the top of the page (or cap, depending on model), but it does leave a residue that makes it harder to write over–this is why the Wave notebook is said to be reusable 5 times. I haven’t tried microwaving my bootleg notebooks, though, so I can’t vouch for that process. I guess I could, since they don’t have any metal, but I haven’t.
I might seriously consider buying the Everlast executive set. I’d prefer to have a smaller notebook and I like the though of being able to wipe it clean and reuse it forever.