Yes, it’s already behind me, i’ve taken level 4 (the easiest ;-) ) on sunday,
Although long, didn’t seem that hard, first part was to choose right reading for given kanji and correct kanji to the reading, second was listening part (not as confusing as i expected), and third was grammar, a little more tricky than others. I think i did well enough to pass (60% required), results coming in february next year… Plan for next year is either level 3 or 2 depending on how much time (and money) i can spend studying.

More information here: http://www.jlpt.jp/e/index.html