Unfortunately I don't understand any Russian, but played anyway. I'm so glad I did.
Not understanding any of the language in addition to the sombre music and unusual, unpredictable visuals made for a very eerie, dark experience. The 'game' sections seemed to play tricks on my eyes- it looked like it would be difficult, but somehow it wasn't. This gave me a strange feeling of mastery and satisfaction.
I think I completed the whole thing- after the monitors(?) there was some talking then it quit on its own.
Apart from having no certain idea of the narrative, my only issue was that the elevator(?) fell for a very long time, and I thought that was the end.
This is such a unique experience amongst all the other entries I've played so far that it's easily one of my favourites. I would love to play an English version.