I love Arena. On my nw20 deep winter complexion, 3n hair, it is a fleshy peach satin. Nothing exciting, but just a pretty fleshy sheen. If you hate how other "wash" colors look too frosty, too white, too pink, too much, but want more than just a matte, try Arena. I love it with Saddle for an easy office type look. When I wear it with my bummy gym clothes, my eyes look great, but not done up and don't mismatch with the fact that I am in my bummy clothes. It is great no makeup, makeup. It is also a very red lip friendly shade.
I also have Grain. I love that too, but I feel Arena provides more color and sheen pay off (not frosty, but not flat). Actually, I will use Arena on the lid, Grain for the browbone and Saddle in the crease for an easy, clean, undetectable but defined eye. If I want to add a little more pop I can add Honey Lust to the lid.