So I had mole problems for 18 months.  A whole mole family with multiple generations destroying my beautiful St Augustine grass.  Tried everything except these.  I finally broke down and bought 2.  These things are sturdy, well made traps.  I only had mole death on my mind when setting them up in the yard.  Had them in place for 5 days straight on frequently used tunnels.  No false alarms, no trips, no dead moles.  I noticed one fresh mole tunnel leading under my fence out of my yard.  I know this is just some kind of crazy coincidence but the moles literally left my yard after I set these up.  I haven't seen one or a new tunnel in over a month now.  They may be back but for now, even though they didn't kill any moles, the cost was well worth it to me.  My yard has never looked better.