Use this amp and you will spend less time tweaking your sound and more time practicing.  I'm finally able to focus! Very important if you want to improve your guitar skills and not waste time.  This amp has lots of realistic sounds and makes it easy to switch around.  Switch from Acoustic to BritCombo+Chorus+Reverb in seconds.  The JC Clean mode also works great as a clean channel with an external distortion pedal if you want to mix it up (I'm using a DS-1).  A solid investment, buy one and you'll see what I'm talking about.