I really liked these.  I'm not as experienced selecing running shoes, and my running is a bit more basic (2 miles usually at average jogging speed) so I bought these only after consulting with a couple of friends who are hard-core long distance runners.  But the difference was noticeable even to me.  I was able to bump up my 2 mile run to 3 miles, and felt very comfortable doing it with these shoes, even finishing the first 2 miles sooner.  The shock absorption from the pavement helped my knees and joints feel much better throughout the workout, and the lengthwise torsional support was also very nice and firm.  Excellent.