I have been an ASICS user since I joined the military 10+ years ago.  I run 4 to 5 times a week and these are very comfortable.  They did seem to run about .5 a size bigger than other ASICS models I have previously owned.  These replaced a pair of Under Armour running shoes I had, they are definitely not as light as the UA shoes, but they are 10 times more comfortable for running longer distances (greater than 3 miles).

I am noticing that as the temperature has dropped these do tend to let the cold in, so I would not use them for the winter.