I've had several Giros in the last 15 years. I like the way they fit my head. Broken 3 of them. Not a lot of smarts to protect there but they did their job. The worst crash I didn't even realize my head was involved until I went to remove the helmet and it literally went to pieces in my hands.
I used to use white thinking it would be cooler but now don't think it makes a bit of real difference. Too much foam to transmit the heat from the helmet surface to my head.
Currently using a Saros as my main helmet and an older Monza as my second. Both mid line but still quite nice. Giro's customer service is excellent, too. When I bought the Saros last year I thought I could maybe clean the old sweat cushions in the Monza. They were too old and broke up as I removed them. Called Giro a tried to buy a set but they shipped them to me for free.
I keep a bandana on my handlebars held with a big loose-ish rubber band for the sweat. Comes in handy.
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