Personally, I can't recommend it. First one was DOA, replaced free no problem. Second worked only a short time. Third is still working. As most multi-function items, can be a pain to operate till functions are memorized. Too many cords to keep out of the fan limiting movement. I have ran across some systems it will not work on. Digital displays are nice, but constant changing of readings is aggravating reading voltage, rpm and dwell.
66 Coupe 200I6 (Rolling Restoration)
66 Bronco Half cab, 203ci I6, CI aluminum head/intake, Isky cam, Keith Black pistons, Holley 390cfm 4V, Clifford header 9.7:1 compression, DSII ignition