My mate has the 150w valvestate halfstack. To be honest, I really dont like the tone. He plays in this pub covers band, rhythm guitars. I went to see them play because he wanted me to come along (also a good excuse to get some pints bought for me :lol:), and I could hardly hear him in the mix. Once the lead guitarist started playing, you couldnt even hear my mate! I know for a fact that the amps were almost the same volume aswell. Guess thats solid state amps for you though, dont cut the mustard next to valve amps :lol: