These are great all around pants for any situation. Dressier than jeans, yet not "dress" pants, and utilitarian enough for the working man.
Sizing is just about right on the money for me. I normally wear 32x34 but in these pants I wear 33x34 just so that they are a tad more comfortable. Also they will shrink a small amount when run through a dryer cycle.
They are fairly lightweight, slightly thinner than a pair of jeans, but more rugged than a pair of chinos. I wouldn't go out on a date wearing these, but they are great for everything else.