Quality of technics sh-8017 equalizer

Can pick one up for $20 but most of my stuff is 70s vintage and this is from the late 80s bpc era. However it looks cool in the dark with the lights on, it's only an equalizer, and if it works well it might keep me from getting a receiver serviced for awhile. I just don't want it to get it and immediately say I just should have gone to 5 Guys instead.