A timely warning, which may hopefully spare someone considering the JET program a grave disappointment.
In case anyone doesn’t get the joke, if they tell you your Japanese is “jouzu” (skilled) that generally means that it’s pretty bad. It’s sort of like exclaiming over the skilled dancing of a trained monkey. You’ll know that you’re really starting to get good if someone corrects your mistakes.
Personally I’ve been told that my Japanese is “kirei”, because it is exceptionally awful.