Well I bought this pickup to fit it on a Hofner classical guitar. I must say that set up was really easy and I was mesmerized by the end result.
First of all the sound is clear, and very transparent. It doesn't color the tone in any way and in fact the character of the guitar shines through the amplified sound. It is very sensitive to dynamics and very feedback friendly, meaning that unless you crank the volume more than 3/4 up, the guitar will be controllable.
The only thing I wished for is better adhesive tape for the volume wheel unit, but this was easily solved by using industrial grade double sided tape.
All in all an amazing product, which I would fit on any classical guitar regardless of value. It will do it justice!