Played around with some Film Photography Project InfraChrome. They claim that it's "identical to Kodak Aerochrome IIII 1443", which means it's likely just bulk rolls of Aerochrome sliced up and spooled.
Never having shot it before, I tried with both the recommended yellow 12 filter and the less-recommended-but-still-possible red filter. General conclusions are that the yellow shots tended to be more in focus,* sharper, and with better colours, while the red filter ran "hot" by about a stop and gave everything a yellow cast. (Since I accidentally underexposed it a bit, this meant the red shots were better exposed.)
* No idea why this would be; I was adjusting focus using the IR mark for shots with both filters.
Would I try it again? I dunno. It's neat, but it's expensive and feels a bit like a one trick pony. Maybe if I had some real ideas on what to do with it.
Canon FTb.
B&H/Canon FD 50mm f1.4 SSC [shots 1 & 2]/
Canon (New) FD 28mm f2.8 [shots 3 & 4].
FPP Infrachrome with Yellow 12 filter [shots 1, 2, & 3]
and Red filter [shot 4].