It was pretty good and funny. There was a story to empathize with, jokes, sorrow, anger... but...
it had nothing to do with the universe Kirby is from or the actual history of Meta-Knight.
Instead you made up your own Kirby universe and your own origins for both Kirby and Meta-Knight.
Naturally, anyone who cares anything at all about the series would vote a 1-3 based on whether they care for the humor or not.
However, I found the animation pretty decent and that fan fiction is something to admire rather than loathe even if it goes way out of line.