Man what an amazing pedal. I am astounded by how easy it is to dial in different sounding tones with this thing. The best part is they are all still soulful and have precense. Just the suggestions on the sheet that comes with it, give you some killer in the pocket tones. ...I use Gibson LP Customs through a Boss GT-6 into an old Marshall Plexi head into a 60s Sunn 4x12 cab. The GT-6 has a model of the Tubescreamer 808 built in. It is actually pretty good. But I tell you there is nothing like the real deal.
[John McElhaney on Harmony Central]

Setting it up as a clean boost into my amp within the verge of break up literally feels like I added a 2X12 cabinet! The notes bloomed with clarity and sustain greatly increased. Adding more "dirt" brought the tone into a very nasty "texas-overdrive sound that reminded of Stevie's overdriven fenders. I played Pride and Joy and Texas Flood literally ten times with complete satisfaction in my tone. Very convincing SRV, with a very smooth, yet biting attack on bass notes as well as the upper-end.
[Richard B. on Harmony Central]