This is already the second Pure mini for me and I wouldn’t change it for another type. The first was on my Martin OM, and this went into my Martin HD-28. Works great on Martin’s bassy tone on stage. Natural sound, no battery. It’s also very powerfull, for eaxple compared to my other guitars with Fishman, L.R.Baggs or Ovation pickups.
A luthier installed it during other maintenance, but it would have been easy to install by myself.
Pros:
Natural tone, powerfull sound, easy to install, no battery
No cons.