Ive got mk III coli red stripe and I could honestly live on a deserted island w/ it,and I also own a Herbert,SLO,Shiva,etc,....mesa was onto something good w/ those mk IIIs and if you do get one, take your time at dialin it in...if you dont,you may get frustrated,if you go slow and work w/ the dials and eq,youll fall deeply in love w/ it...