As other reviewers mentioned, you'll be communicating with Lana through her daughter (in my case via text), unless you speak Russian. And you will rely on coordinating with Lana for getting in and out since you will not get a key to the apartment door.
That said, Lana is a sweetheart and made me feel very welcome while respecting my privacy. Even made me a simple breakfast during my one-night stay. For me the language/coordination was not a problem, and I'd definitely visit again.