I have a hard time finding athletic shoes with arch support, and usually have to put in an extra orthotic insert.  This particular model of ASICS has enough arch support that I don't need an insert.  The shoe has a lot of padding, and is very comfortable.  I did need to wear it around for a few days before it started to feel broken in...no blisters or anything, was just a little bit stiff to start with.  I really like the gel cushioning.  I am not a runner, but I wear these shoes for everything from walking and using my Nordic Trak to housework and gardening, and I'm very pleased.  The best part really is that I don't have to put an extra insert in them.  As far as sizing...I usually wear a 7, but I had to get a 7.5 in these.  I was lucky enough to try them in a store first, and then came home and ordered them on Amazon because they were cheaper and had better color selection.