I‘d call it “very good” for what it is but hey it’s all relative isn’t it? One of Kevin Parker’s recording “secrets”, the SE30 by Shure has a very ”level-loc-ish” way of clamping down on a source. This one, in addition to being pretty clean, just smashes stuff up in a really cool way. It’s fun to feed a hot signal! Ran a mic through each channel and, though I haven’t used this since my oldest was born over two years ago, every function seems to be operating as expected! Ive owned this one for the last 15 years or more and it’s always sat at my climate controlled non smoking home studio in that time. Feel free to ask any questions beforehand. I used this for a specific thing so if you want to know if it does any other thing, we should probably make absolutely sure that it does that too. This is an as-is sale as every vintage equipment sale of mine is. I guarantee it to be operating as it’s currently operating when it shows up at your door, and that’s really it. Thanks for your time.