Wow Finish harder than Russian. I believe it.
Basically, Finnish and Hungarian are the hardest European languages to learn for non-native speakers, almost without comparison.
Since then, hungarian language got a strong and more recognizable influence from turkic/slavic/germanic languages.
The origin of the population is unclear before they were in the Uralic region.
Compare Finnish to a language such as Polish with many cases, and Polish always comes out "harder".
I'm biased as I have moved to Finland, and am (slowly) trying to learn the language. It is hard, but at the same time I'm not sure that learning grammar/words would have been easier if it had been related to another language that I also didn't speak!