Using the metro really reminded me how much LA is missing in terms of sane public transit. Walked around downtown Moscow, froze near to death (-12C with wind requires some extra cloths that I neglected), got into the first station I saw and only needed one train change to get to the line that took me home. All-in-all less than 20 minutes from randomly picked downtown station to home halfway across the city. Same thing in LA would have required extensive planning and likely multiple bus/train combos, or more likely a call to Uber/Lyft...
Another interesting feature is that Moscow metro has flat rate pricing.