I have a Lici (OEM manufacturer of Jobo brand) Colorstar, and have used less sophisticated analysers in the past.
The best tool for printing and learing colour is the colour print viewing filters by Kodak
The colour ring poster around found in many 80's era Kodak Dataguides is also useful.
The analyser helps to establish your base filtration, and exposure time.
I find my Lici is good, because I print RA-4 probably only 6-8 times a year, and it quickly gets me within range for the first test print.
I think if I printed RA-4 more often I would use the analyser less often.
Yes, I concur with RPC that film bases colur casts do vary. Fuji's Reala has a base that is very different from what I was used to. Tungsten balanced films from Kodak also had different coloured bases from the usual range.