Disaster, discovery...not just for guitar!
I was prepared to be underwhelmed by this pickup, but it surprised me. We have a very fine classical guitar that, with a microphone, was unable to be loud enough in our mix. We needed to do something, but it is too perfect of a solo instrument to install a regular pickup. I ran into this pickup while looking for a solution that didn't involve modifying the guitar at all. There aren't many options, and most are inadequate, at best.
This seemed like it would be worth a try, so I ordered one. We plugged it into our Bose L1 and set it up for a classical with Piezo. A little eq and reverb, and it sounded great - surprisingly great. While enjoying the sound, one of my children jumped over the cord and missed, and in so doing, they revealed this pickup's one flaw.
It is fragile! Of course, the pickup needs to be light, so fragile should be expected. After checking the guitar for damage (it was fine), I ordered another one. It was that good. It doesn't replace a quality microphone for solo classical work, but at high stage volumes the microphone is harder to eq and can't be loud enough.
The only thing left was to figure out what to do with the broken stub of the pickup, since it was still able to produce a signal. We had been thinking about getting a cajon that had a pickup in it, so I thought...why not see if it would work as a cajon pickup? A little double sided tape later, we had a functioning pickup in our cajon, and it sounded great. Our almost-disaster turned into a pleasant discovery.
If the instrument were not a fine concert guitar, I would probably would have installed an LR Baggs Lyric. That would definitely sound better, but this was good enough to be better than a microphone where stage volume is high.