The Gel cumulus used to be my favourite shoe.  I bought a pair from a local store years ago and just loved them.  My feet are challenging to fit and this shoe was great.  I'm still wearing the original pair. They are some what worn and I thought I'd order the next generation cumulus. I don't know what happened, but when ASICS changed the sizing on the cumulus the fit changed radically... at least for my feet.  I've tried both my current size, which was too small in this newer model, and a larger size as suggested by many reviewers.  Neither had the same comfortable fit as my original pair.  The larger size was too wide even though I ordered the narrow width.  Amazon was fantastic regarding the returns.  Just wish ASICS hadn't messed with a good thing.  I'll be hitting the local brick and motars now looking for anotner brand.