For as long as I've been a member at this parish(5 years) we've had the same practice of Forgiveness Vespers following Coffee Hour, with almost no one ever leaving before Forgiveness Vespers. The primary reason why is that Fr. Marcus makes clear during each of his after liturgy announcements that Forgiveness Vespers is one of the most important services of the year for the community and that at St. Vladimir's students are told that if they do not attend Forgiveness Vespers they may be asked to leave the school(not sure if this has ever happened, though). He treats it very seriously, but if a person honestly cannot make the service(we have a courier who is always on call and is 95% sure he will be on the road at the time) Fr. Marcus asks that person to make peace with the people in their lives before they go, so that all of might start the fast with a "clean slate"(my words not his).
Our rite of forgiveness at the end is a very moving experience as well. As I have never attended this rite at another parish, I'm not sure if what we do is standard. After the benediction at the end of Vespers, Fr. Jacob walks up to Fr. Marcus at the ambvon where they ask each other to forgive them and exchange three kisses. The readers get in line after Fr. Jacob and everyone else behind the readers. When you approach someone, we do a metania and say "forgive me (name)" to which that person replies "God forgives," and we kiss three times. After you go past the last person you join the chain yourself. At the end, we surround the entire perimeter of the building in one long chain of forgiveness and kissing. Many of us shed tears at such a joyous and cleansing event.
What is your Rite of Forgiveness like?