San Francisco Ranked Choice Voting
San Francisco moved to using Ranked Choice Voting in 2004 and has held two elections using the system. This San Francisco Examiner article reviews the experience in San Francisco. The article documents cost savings, higher voter turnout and a voter survey of attitudes about the new ballots.
It is interesting to note the voter survey in the article about shifting from one voting system to Ranked Choice Voting. There was no survey of Washington voters about the move from the blanket primary to the Montana primary.