The Canadian Province of British Columbia is in the process of exploring electoral reform in a multi-party environment. More details are available here. They have also assembled some Learning Resources, although as with anything it is likely to have its own biases in its examination of various systems.

Australia held elections on I believe it was October 9th, and as of November 5th their primary vote tally is shown as about 95% complete. The two-party preferred count is about 90% complete. The Australian Electoral Commission also provides information on how their elections work.

Whether it is a Single Transferrable Vote or some other form of Proportional Representation, I'm not convinced that it's an improvement over First Past The Post. Different, yes. Better, not so clear.