I've been on the June 14 and June 21st trip, will be on the July 7th trip.
So far they want to leave on time or early to get photos, so don't be late to Anonito on the morning of the 7th. Hours of service are in effect, so figure this trip will arrive Chama by 6 pm at the latest, but who knows. The bus to bring you back to Anontio should be ready to depart Chama soon after the train arrives, so don't miss that if you car is in Antonito.
These trips, so far anyway, have been very well run with the railroad trying to get as many photostops in betweeen meets with the passenger tains and getting to Osier for lunch. Figure on a long, long day, bring plenty of film/digital stoage and be ready for sun, rain and wind.