First, I bought a pair of Serengeti when I traveled and forgot my Maui Jims at home. (How can one forget Maui Jims??)
Serengeti are really good, found out. Fit well. Lenses adjust to brightness/darkness and that is cool. And the folding type is compact. Thumbs up.
I usually buy ONLY Maui Jims. Excellent lenses. Great fit. And when they broke, Maui Jim fixed them 2 times FREE of Charge.
Actually, I just broke one lens on My Hawaiian Limited Edition pair a about 2 weeks ago. I have to try my luck again and see if they will give me a new lens for free.
Even if they won't, I still love them. You couldn't ask for better sunglasses and company, IMO.