Works fantastic for connecting retro consoles, computers, and modern consoles into a single output. I use this to combine the audio from my PC, Switch, SNES, and NES (with individual audio control) to my single pair of headphones at my desk. A problem I was having with some of the cheaper line mixers for this purpose was LOUD buzzing, a constant feedback that scaled up with volume and was sometimes accompanied by more buzzing on top of that randomly. This one was more than double the price of all the ones I've tried, but bit the bullet on it and I have not had that issue with this one. I tried a passive mixer as well thinking that would help, but it was too quiet due to being unpowered. I guess the saying "buy once cry once" applies here. There is some loud feedback when a knob is set to full volume and no audio is playing, but all of my inputs are at <25% volume and I don't hear a thing. 100% volume with any of the inputs on this mixer would probably give me hearing damage. I do wish that there was an option to switch each input between stereo and mono, as well as individual on/off switches for each input, but those are more "nice-to-haves". Still no complaints. Solid mixer, but a little pricey (at least for my use case). If the price is worth it to you, I can definitely recommend picking one of these up.