This mostly would apply to people who take Metrolink but may apply to other types of public transit as will, (I will check later sometime). With your Metrolink train ticket there should be an "
EZ Pass" logo on it you can use the MTA Rail/Bus lines and the
DASH lines as will with out having to pay extra for those fares. Of course this only cover the basic fare (zone fares are extra) but if you are only going to stay in the LA area you won't have to worry about extra money being spent on travel around the city.