Thank you very much, Ruslan! Even in difficult situation, when we was on our way and had no place to go in Odessa, Ruslan was ready to help and contacted us. However, angry border control didn't allow us to cross the border for two days in a row, and we hadn't got a chance to impress with Odessa and meet Ruslan there.
Anyway, when I'm in Ukraine again, I'm going to keep in touch with Rus without any doubt!
And you're always welcome in Samara, you know) Good luck!