I bought the lightning/black/blue shoe mainly to workout in (at the gym, not running).

It's one of the most comfortable shoes I've worn in recent memory. It's nicely padded, light, and vents over the toes. It also seems like it would make a great running shoe, though not for the ultra-marathoner (more expensive, lighter shoes for this), but I'm not expert in this category. For my purposes and for average running, this shoe is great and I definitely recommend it. I've gotten many (unprovoked) compliments on it as well, so more power to it. This is my first pair of Asics in a long time, and I'm definitely going to look to them again for my next pair.