Pros: According to my son, no issues with vibration. He loves the thin tapered handle as he usually "chokes up" just a bit (1/2 inch) when he hits. Barrel design provides a slightly larger sweet spot compared to a lot of other 30" USA big barrel bats. The proof is at the plate - For a bat that is supposed to be more like the quality of a wood bat ("deader" than the now obsolete bats of last year), he has already hit 5 over the fence batting practice home runs this year (none last year). He is 11 years old and weighs a whopping 78 lbs soaking wet.
Cons: None thus far. Has performed well in colder weather. We live in northern New Hampshire where the snow just disappeared 2-3 weeks ago, so we are just getting started outside. No issues with denting thus far.