Finnish is my native language, and I'm fond of the fact that you pronounce every single word exactly as it is spelled. Even more so than in spanish. A single vowel is pronounced short, and a double vowel is pronounced long. Same with consonants. No exceptions. We have 29 letters, so the entire language is composed of just those 29 sounds, four of which are used only in borrowed words.
What's weird about that is that foreigners find it confusing. I have no idea why. (btw I wrote "wierd" because that's how you pronounce it, but the spell-checker helped me). My kids are bi-lingual, and even they have problems learning the rule after having learned Swedish first.
In complete contrast to the simple pronunciation, the grammar is incredibly complicated. You can make some 1500 combinations of one word and several postpositions (if that's the word for the opposite to preposition).
Yes, I have a few Swedish friends, and I have met Danish people, and the tell me that Finnish is incredibly hard, and they liken it to Russian more than the other Scandinavian languages, which I find fascinating!
Cg