Pulled this baby out of the box(nice packaging)when I got home from work,and could not stop playing through it! After 5-10 minutes of tinkering- dialed it right in,yet there is so much more this amp can do.First-very quiet,even when wound up.Initial inspection tells me this think is built like a tank.Fit,finish is superb,dials tight,precise-appears very rugged-time will tell.The cleans are chimey,clear,and bell like if desired-with the ISF control(awesome feature)Fender like or Vox/Brit type tone,or dial in the ISF somewhere in between for a unique blend of both.Like most players it is a constant chase for the ultimate sound/tone.You would easily have to pay 2-3 times more for a boutique type amp that does what this amp does.And I'm saying that based on actually playing a bunch of them.As far as I'm concerned this has got to be THE BEST BARGAIN on the market right now.To get to the overdrive channel:Driving metal tones,smooth creamy sustain,(again the ISF dial),Marshallesque,Mesa type,and pretty much anywhere in between-I was hard pressed to find any limitations.Reverb:not a huge fan of reverb in general-reverb sounded fine.I would love to hear this amp plugged into a 2x12/4x12 or even a single 12 extension cab. I am of the opinion "less is more"as to dials,buttons,this and that.All controls are functional,precise,tight and useable(did I mention the ISF control!!!),just an awesome,innovative feature-that does what it claims.I tried this beast with a Les Paul Custom and an Fender Tele.Both sounded great,the Les Paul seemed a bit more vibrant,but just being very picky on this.All and all just unbelievable sound for an amp in this price range-The folks at Blackstar are completely in touch with what is expected of great tube tone,and for a newer Co. I can't wait to see future products,innovations they come up with.YOU HAVE TO CHECK OUT THIS AMP!!!