3 channel, programmable version of the classic "Sansamp BDDI". A serious bass player tool, no matter if you are a seasoned Pro or an amateur. A true "industry standard" in bass overdrive and D.I. I never go out to a gig or recording without my Sansamp. Some sample sound where this pedal was used on the recording: Prisión (para el rock n´ roll), by Guanche
Cons - None I can think of. Ok, it can make your bass sound a bit "generic" if you mix the blend too much.
I owned one a few years and took it to all my gigs. Great pedal! It also has a really nice and useable distortion sound! Highly recommended if you want a great sound without buying tons of gear!