This is perfect for my 11 pound Pomeranian.  She can easily see out the front window, yet remains safe with the internal harness.  It is designed thinner than most other seats so that it fits nicely on top of the trucks center console.  The seat attaches to the left and right seat backs.  I'm hoping that it will hold up over time.

Pros: Looks nice.  Came already assembled.  No guess work.  Easy to figure out attachment.
Cons: A bit Pricey