i bought these for walking dogs in the middle of winter which at the time i was doing for a living - up and down icy sidewalks, through snowdrifts, and on the street.  they are great.  they ARE a little tough to get your feet into (and it helps to have a heel jack to get them off) but they are tough, secure, and ANTISLIP.  they have the big toebox, which keeps me from getting numb toes (every other brand seems to put pressure on that nerve that runs down your foot).  I wasn't wading through streams, but my feet did not get wet at all.  i give them five stars both for comfort and function.  oh - and they segued to "work casual" very well. went from walking dogs, to indoor 8 hour shift on foot, without a hitch.

notes: i live around boston... temps generally above 10 degrees F.  I am buying a pair of keen "alaska" boots for serious cold winter hiking.  and per the usual with Keen, buy these 1/2 size up from your usual size to get a normal fit.  if you want to wear thick socks, you might want to consider a full size up.  Most, but not all Keen shoes run 1/2 size small for most people.

remember - BIG TOE BOX.  don't buy if you don't like it!