The cons I have found are, in a bit of minerilaizeation the VID is not real accurate especially below 4", In colder weather (under 50) mine will completely loose threshold in all metal mode (nothing can be done about this, no adjustments just a fact of life with non adjustable software based threshold) At temps under 50 it will overload on the highest sensitivity, again, nothing to do about it, Not as well balanced as some other machines, shaft can be wiggly with no cam locks, not much of a coil selection, after market coils do not work on it, poor retention of resale value (when purchased new at list price like I did)
Pros, simple to use, multi tone let you learn very quickly what trash sounds like vs a coin, fast recovery, many features as stated above, that are missing on older entry level machines.