A lot of youtube tutorials give the impression that because AGS doesn't have a separate volume control, the overall balance between AGS and clean sound can't be adjusted, thuss making AGS very hard to use. While this is somewhat true, after i bought the unit, i figured out that AGS is not meant to be a on/off for the overdrive. AGS is just an additional way of shaping your tone and it's very good at it. If you are looking for a vintage tone, the Tone Hammer is the way to go as far as preamp+DI are concerned.