Admittedly I was only able to see it on YouTube, so not the best format.
However, I was still very impressed at it's beauty. The icons painted on the wall in the Russian church shown during a service were one of my favorite parts.
It's about a young boy in czarist Russia and his pure idealization and fantasizing about love. He is drawn to a sophisticated older woman but also feels something for his family's maid.
As with most foreign films, the subtitles can not do it justice. You miss a lot of the actual dialogue. The jokes, the rhyming language, the use of informal/formal forms of address that we don't have in English.
Without knowing the culture there is a lot more than falls through. It also helps to have read Russian novels & short stories - you'd know that there's always tragedy and loss involved somehow.
So if you don't speak Russian or know the culture, just understand that there's a lot of context and subtext that you're missing and allow for that - but I think you'll still enjoy it for the pure visual beauty of the piece alone.