"Puzzlingly bad" is a quaint, but accurate description indeed.
At risk of a diversion, in somewhat curious about what makes it quaint; it's the sort of description I'd come out with myself. I know I'm old, but I'm not that old...
Apologies, I was under the false assumption that quaint meant something else entirely.
*Writes messages on the back of his palm: "Do not try to sound clever in your second language"*