Opinions on ADC

Hey folks!

I found an ADC Sound Shaper Two MKII from the local thrift store for $5.00. I plugged it in and it lights up and works (for the most part). There is a signal drop out on the left channel, but other than that. The sound quality on the right channel is quite good and the buttons/sliders are all intact and the meters work.

I currently have a Soundcraftsman 2024EQ that has worked well for over 30 years. Thw question I have is if the ADC would be comparable too or better then the Soundcraftsman and thus justify the cost of repair? Thoughts?