I like the fact that it can be "partially" installed with the cord coming out of the sound hole or it can be easily installed on a more permanent basis by cutting the cord to length and running it inside the guitar body through the end pin hole (which will have to be enlarged a bit).  Either way, once plugged in, it sounds great.  This pickup maintains the great acoustic sound of my guitar, a Blueridge BR-160.  I installed some Fishman "under the saddle" pickups in a few Martin guitars and this pickup sounds just as good, if not better.  If you don't mind the pickup visible in the sound hole, this is the way to go.  Another nice thing about it is the ease of changing out the batteries as compared to the undersaddle type pickups where the batteries are attached to the inside body of the guitar.