Okay, I asked a friend who'd bought the blue 700x37's after I found the sweetskinz for scar. He commutes about 8 miles roundtrip in Idaho with about 250 feet of vertical and has been using them for a few months.
He said:
huh... I don't know that I'm much of a critic RE tires.
Mine roll fine. Not loud that I've noticed.
I run mine on max psi.
Before he was running - Bonty Jones stock tires, then a cheap Ritchey off-road cross (horrible on-road efficiency and handling), and a Conty touring tire on back. The ritchey tire was very square, thinner than the sweetskinz but rides much fatter.