I've been wearing NB 587s for over 12 years. I am a big guy -- 6'1" and 240. I have big wide feet. The NB 587s give great support and control and are about the most comfortable shoe I've ever worn. The SL2 designation  means there is plenty of room in the toe box area for the front of my foot to spread out. I have never had any aches or cramps from this shoe. I must admit that the color combo gets a little tedious, but I don't wear them for appearances. As I've gotten older, I developed peripheral neuropathy (a combination of numbness,tingling and burning in the feet) and I find that these shoes do not in any way interfere with or make my stability uncertain. These are great shoes, and if you have big, wide feet, and are a big person, you will be happy. Even if you're not a big person, these are still great shoes. As a bonus, they seem to wear very well, and when they are worn down, they become the perfect grass-cutting shoes that give me an extra couple years of service. What's not to like?