While these are great shoes and I keep buying Brooks, I find that they wear pretty quickly for the price. Before the 6 month mark mine end up with holes by the laces and near the sides and it feels like I'm walking on bear cement by the end of the 6 months. You can definitely tell when it's time to replace them. It's okay since every 6 months you should anyway but after maybe 3 months mine got a few holes in them and it happens with every pair of Brooks I buy.