Pros: Very comfortable ride at 4". Extremely smooth on-road ride for an off-road suspension system. Feels excellent for their price.
Cons: None to speak of. They are much better suspension systems out there but it's all about your needs. For the price, they're great.
Comments: I had a bad rear show that was making the entire rig feel like I was always off-road even when I was on the pavement. Replace the rear with the Teraflex and it was a dramatic difference. Once I replaced the front it was remarkably smooth on pavement. This is my DD so I don't want to be in pain just to have a really good off-road suspension. Very happy with it. Replace a ProComp set which I'll never go back to (shock snapped right out of the bracket).