Z'drstyi, MisterE. My major problem with the Russian language is the alphabet. I have never mastered it. But, then, I've never really tried to either.
My mother was fluent in Russian. She was also super-fluent in German. But her nationality was Latvian and I was born in Latvia and so the only other language which I can speak just as fluently as English is Latvian. Unfortunately, Russian and Latvian are not related languages. But due to constant contact with Russians over the centuries, some loan words have snuck into Latvian from the Slavic stock. This is equally true of loan words from the German.
All in all my German is a helluva lot better than my Russian. I can actually speak some rudimentary German. In Russian I know a few words and stock phrases (e.g. n'zdarovya), including a few swears.