I have a job that's very hard on shoes.  When I can wear a shoe all summer and it's still good to start next year I consider it a good shoe.  Merrell's have almost always been there for me (the Moab is the exception, don't buy).  Water proof, and durable.  I stand on concrete all day too, so it has to be comfortable, cheap shoes don't work, and insoles help a ton.  I look for clearance type items on Amazon and in stores, I picked these up for $40, I feel a deal like this can't be beat.