I've been a runner for about 6 years and bought my first pair of Mizuno Waves about 3 years ago. They are still in great shape and have proven to be durable and super comfy. I bought the purple Waves and have gone on several 4 mile runs thus far. They are perfect, very comfy and sturdy. I've gotten compliments on them as well. Signed up for Amazon's shoe email deal and got a coupon code for 20% off. Very happy.

UPDATE MAY 8, 2013
I had to update this since about a week after I got these, I developed painful shin splints! I did some research and ended up buying $20 arch support insoles. That seemed to help which is good since I love the style and lightweight feel of these shoes. But for the price, I think they could have better arch support. (And I have a typical arch.) FYI, I run about 16-20 miles a week, outside and in.)