I can't compare the two, but I have the Sherpa and love it. Wind noise is more than factory, especially with the light bar at freeway speeds, but it is not any more than I would expect from any rack. Crazy thing is, if you close your shade on your sunroof it cuts the noise down noticeably. If it is bothering you, just close the shade. If not, leave it open and it really isn't that big of a deal in my book.

Making sure to adjust the wind fairing so you don't have vibration is the biggest thing. I had no vibration under standard driving, then found the sweet spot on the freeway where I did. Adjusted the fairing and no more vibration.