Pros - Warm with ample low mid fullness and punch.
Cons - Low output.
I put a pair into my 2000 Fender US made Jazz. It has an Ash body maple board and it gave it a nice warm punchy tone. The output is low so I run mine through an Aguilar Tonehammer DI. You can just turn up the gain on your amp. True to Bartolini fashion (I play them in most of my basses), they have a warm low mid focus and has a nice bloom. They don't have that sizzle but for a passive pickup and a single passive control knob I'm not looking for that modern sound. Great pickups.