I actually have it and have used it multiple times. The overlay is annoying, adjusting individuals volumes, is it there or is it not?
Did anyone mention the fact that mumble crashes..a lot.
Vent rarely ever crashes, has no overlay by default, and individual volume can controlled easily. The .5 second delay in talking is completely bearable.
It's never crashed on me once, ever. The only time it's gone down is when our whole box has gone down, and that should happen because it's on our box. You should uninstall and make sure you have the correct version for your operating system.
As for individuals' volumes, you don't need to adjust them because once you set the audio compression, it actually WORKS, as opposed to vent's system which clearly doesn't work... at all. The whole point of compression is to normalize all incoming audio, so people speak at the same volumes. Take your time in the audio wizard, the shit really works wonders, I promise you. Take 10 minutes, and test your levels with someone else, I'll help you, and I guarentee it'll work great.