I hate to sound a sour note, but our experience with this application has been markedly different from that of other reviewers. Our small business has been trying BusySync for three weeks. It has caused more problems than benefits for us. As other reviewers have pointed out, BusySync is a delight to set up and configure. One great feature, for people who can get BusySync to run, is the Log, which records every transaction with the calendar. Unfortunately, it has not helped us to solve our problem, but it can be a useful troubleshooting tool. However, on our four-user network (all of us running Leopard), BusySync does not synchronize reliably and has required numerous resets, which sometimes solved the problem and sometimes didn't. The result has been that BusySync has made our company's common iCal calendar almost unusable.