I have used previous generations of this shoe for many years. This version is very different and I like the older models more, especially in terms of looks. I also think that springy shoes can be traumatic for older runners as they generate higher peak forces. I'm not sure, but I probably won't buy another pair of these shoes. Saucony also changed the outsole which is the best I've ever used. Granted, the new one has worked well so far, but the old example was excellent for traction without clinging to mud.