This game is just brilliant! I like the gameplay and the storyline. But the ending is way too sad for me. It says: even magic can't help you resque the one you love, so all you have is a little hope. This is distressing, because this is reality.
Also, I've encountered the same bug L1ght5h0w wrote about a year ago: I came to grandma before visiting Red's mother and was unable to return to the Metro.