This trap is easy to set up (if you know how and, admittedly, the directions are not too helpful) and get situated along a tunnel.  No digging is necessary as with some in-the-tunnel traps.  The real work is figuring out where and how to situate the trap.  The moles in my area are extremely small (3"-4") and I did not find the "in-the-tunnel" traps very useful.  Plus you need two "in-the-tunnel-traps" to do what one Victor trap does.  I notice a lot of complaints about difficulty setting this trap.  There is a "trick" to it that make it very easy but trying to describe it is like trying to write how to tie a shoe lace.  All I can say is that I set it by placing one side on a concrete or brick surface while using the included tools to set the trap in a manner that otherwise mimics the enclosed instructions.