We used them quite regularly this past January. I guess it depends how much time you actually want to stand in line. For us, we didn't want to wait 15-20 minutes in line. Soarin' especailly had lines that were a 90 minute wait - definitely FastPass this. Also, Kiliminjaro Safaris was busy (I don't think they have as many vehicles running that time of year). Also needed them for Rock 'n' Roller Coaster and Tower of Terror. Also, the line at Pooh was pretty long all day except at opening when we rode it. All of the FastPass machines (except Star Tours) were open during the day, but usually by mid afternoon, they were closed - especially in the MK.