I love these shoes for work.  I reorder them every few months, along with another pair of LifeStrides.  They're comfortable and stylish.  I do a lot of walking and I never have a problem.  I'm usually a 10/11 in shoes.  I buy the 10 and if they're a little tight I'll put on the shoes with a pair of socks and stretch them slightly with a hairdryer.  It works beautifully every time.  I've never had blisters or hot spots.