Disappointing. Poor design. The pots are set back so far that they cannot be mounted in a panel without removing them and running wires to them. Could have easily been avoided by placing the pots on the board edge! Component identification poor for newbies. The pots are not marked whether they are log or linear. The transistors are different to those in the parts list although looking them up in a spec sheet finds them compatible. Very confusing for a newbie which fortunately I am nor!