It's exactly what you would expect, a high output pickup that delivers great metal tone without removing the "tele" sound completely.
Pros:
*Delivers great tone, pretty versatile (even on clean settings on the amp).
*It works great in standard E and Standard D tuning
Cons.
*If you buy this pickup make sure to install 500k pots in the guitar if you want to optimize the sound. The sound gets a bit muddy with 250k pots in drop C tuning.
I use this pickup in my Fender American Telecaster and I would not trade it for the world! It has absolutely improved my tone, especially in standard E and D tuning. I play metal and hard rock.