Wow ... why anyone would have downvoted Phil's latest contribution here is beyond me.
It's correct, well worded, and to the point.
As for the complexity of Slovenian:
It knows 6 cases (as opposed to the 4 in German) for nouns and offers a "dual" for the verbs to make things even more interesting. The "dual" is a conjungation expressing things two people do:
I walk hodim
we two walk hodima
we (more than two) hodimo
he drinks pije
they (two) drink pijeta
they (>2) drink pijejo