I like this pickup. It has a dual layer which senses some of the vibration of the top of the guitar. This is fitted to a cheap Gibson DSM and this has become my regular stage guitar, mainly due to the addition of this pick up. It is very clear and I can play on some very large stages with it. It does suffer from some rather bassy feedback, but this is mainly the fault of sound engineers not paying attention. I do have an older EMG undersaddle fitted to a much more expensive Lowden Acoustic, but this pick is much much better because the the EMG is brittle and this is smooth.
This coupled with the Nano Mag would be a brilliant set up.