> I would actually love to hear some specific and insightful criticisms of Vim ...
Sure, no problem:
* It's still a command-line editor. Just like vi.
* To perform multiple operations, like moving the cursor around, entering text, deleting text, searching the document, saving and loading files, requires you to switch modes. Just like vi.
* It cannot take advantage of the modern computing environment -- mouse navigation, different fonts, text styling, page layout, or anything else. Just like vi.
* No clipboard support -- all copying and pasting operations, apart from being another example of bizarre vi incantations requiring the recall of a raft of magic characters, is within vi/vim and disregards the system clipboard.
I can say this in vi/vim's favor: it's a step up from ed, its predecessor.
> In today's terms, the above "without wasting too much paper during editing" argument translates into "with as few keystrokes as possible".
No, actually, in the vi days, to save paper one had to enter more keystrokes, not fewer. When I wrote Apple Writer, former users of vi were astonished by how few keystrokes were required to accomplish things.
> do you have any specific issues with Vim?
Just one. It doesn't belong in modern times, it belongs in a museum.