Great little analog 4 track recorder in good working condition. I haven't used it in a very long time but I powered it up and it seems to be working fine.
There is one issue, however: when turning the headphone knob it emits a very loud and unpleasant crackle, so be careful! I would recommend just leaving it at one setting and adjusting the individual track volumes instead. Alternatively if you want to fix it yourself here's a video I found on how to do that:
https://www.youtube.com/watch?app=desktop&v=6N7fBIQu32U&t=12s
I went through the steps myself and it wasn't that hard. Unfortunately I realized I didn't have the necessary contact cleaner so I wasn't able to fix it.
Feel free to reach out with any questions.