As someone who lives in a jurisdiction where every single vote I can engage in is RCV (Australia; NSW) I can honestly say that it’s so much better than FPTP. I don’t know what the perfect voting system is (frankly a subjective topic as it currently stands; please feel free to correct me with statistically valid alternatives) but RCV at the very least means that I can (and personally have) never vote for a major party as #1 and I can know for sure that my vote has never been exhausted, because I’ve never left a blank box. We also have mandatory voting, which helps to keep things sane.
In Australia, government election funding is only ever allocated to the parties based on #1 votes, so I can also confidently say I’ve never contributed to a major party’s election coffers as I’ve also never donated to any major party. I obviously support one major party over the others, as based on my preferences, but I’ll always give the election funding to a smaller party or Independent.
RCV is a wonderful step to take from FPTP. I understand that it may not be democratically perfect, and frankly no representative voting system may ever be, but it’s a far cry better than FPTP. It’s a known concept that here in Australia politicians vie to represent the ‘middle’ rather than the extremes, because the vast majority of voters aren’t overly-enthused political lunatics. We still have our issues to be sure, but I’d rather that the political class fight over the centrist majority rather than court the political extremes in order to convince people to actually vote thanks to mandatory voting.