I had a pair of Nunn Bush shoes, though a slightly different style (<a data-hook="product-link-linked" class="a-link-normal" href="/Nunn-Bush-Men-s-Jason-Oxford/dp/B0039PTK3Q/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Nunn Bush Men's Jason Oxford</a>).  I used them for work, and end putting a few miles on them every day.  Eventually the soles wore through and I started getting wet socks from walking outside in the rain!

But the rest of the shoe stayed pretty solid.  I had to replace the laces after about 6 months, but that was a $3 expense.  I also replaced the insoles around the same time and those made a huge improvement.

With the current pair, I plan on replacing the insoles for something slightly more comfortable and with more arch support (the current Nunn Bush insoles are rather flat).

The shoe looks great.  It has a nice shine, has classy lines, and is pretty sturdy while being decently comfortable.  The upper is a little stiff, but the sides and the area around the ankle and heel are very cushy.  This is the second pair I've owned (of Nunn Bush), and I highly recommend them for work or for dressing up.  They look great with slacks, and are nice with suits.  I have a pair of Cole Haan Oxfords that cost twice as much, and these look almost as nice, and are MUCH more comfortable.

Size fits true. (If you're in between - say you wear either 10 1/2 or 11 depending on the shoe, I would try the 10 1/2 first).

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Update:  These are not very comfortable at first.  It takes awhile for them to become broken in.  I also replaced the insoles with a Dr Scholls gel insole since I am on my feet at work in these quite a bit.  I recommend replacing the insoles asap on these shoes.