Does what it says it'll do which is especially nice since I'm not sure why certain things are playing so quietly when others are fine.

Only thing I'll note is that you should lower the volume level on the tool BEFORE a new episode starts on Disney+ or else the "600%" is still the original volume and you won't be able to increase the volume without refreshing.

I haven't had this issue on other streaming services so I'm guessing this is more about Disney+ than anything the add-on creators can control.