Four months late sorry. I think the CP Fastpass is excellent value personally, particularly the higher tier one. I didn't get it and I kind of wish I had. The silver tier was only on rides that had 5 minute queues anyway so was pretty useless, but being able to unlimited skip Steel Vengeance, Valravn, Maverick and Top thrill dragster would have made the days much easier.
It's the one time I would have broken my no pay fastness rule.