I’ve used the sprint Fixer exclusively for fifteen years or so now. I shoot HP5, FP4, PanF, used to shoot Plus-X. I mix it at 1:4 and add half of the hardener recommended for films. 3 minutes, agitate for the first one, then 20 second rest, 20 seconds agitation etc to the end. I also use the Sprint End Run wetting agent. I used to use the print developer for proofsheets and proof prints, but have switched to Moersch 4812 for all that, because it lasts for ages even as working solution.
The ACROS might need 4 minutes fixing, the Delta and TMAX films do.
The film developer is a good general purpose one, but nothing special.
I was a student of Paul Krot, the founder and chemist for Sprint, back in the early 80s. He knew photo chemistry inside out, designed this for ease of use and archival processing.