Pros: (1) It is fused which means you get extra protection. (2) It has water resistant housing which prevents spill from short circuiting your equipment and, (3) it is small enough to fit anywhere in your vehicle.
Cons: None so far.
I Used this dist. block to power my two subs, one under each front seat, installed it right under the center console and fits perfect. I have my subs powered and protected with one dist. block in addition to the fuse protecting the whole system and a circuit breaker. Great choice if you need efficiency and protection.