I got my first pair of Dunhams about 10 years ago and I finally wore through every inch of them to the point that my local cobbler (Appropraitely named Gus) could only do so much to rehab them.  Fortunately the Dunham logo was still on them cause I could not for the life of me remember the brand.  Plugged "Dunham" and size 15 in and found these.

Pros:
+ Comfortable - which is not always easy for this size of foot.  Slightly wider-than-average foot, but I still go with standard width, these fit liek a charm.  Perfect in size too, sometimes 15s run a bit short but these fit like a glove.

+ Looks - had em shined out of the box, went from a dull black to a vibrant look.  I won't wear these to any black tie events, but for daily office work they are perfect.  Look business, comfort like a sneaker (I think thats actually how they were pitched to me 10 years ago!)

+ Durability - Well the last pair survived 10 years of beatings.  Living in NYC I walk everywhere too.  A shine every month or so, and I think one sole replacement for the last one.  Ive had these about 2 weeks, and they feel, if anything, more durable than the last pair.  Its an encouraging sign.

Cons:

- None (yet?)