I have the Kyoma model. They are the same, the Flash has a buckle instead of a third velcro strap. Really light. They are really breathable too. The "dimples" you see in the catalog pics are holes. Great shoes. DMT has made Nike's cycling shoes for a couple of years. You can follow the sizing chart for either.
I want rustlers, cutthroats, murderers, bounty hunters, desperados, mugs, pugs, thugs, nitwits, halfwits, dimwits, vipers, snipers, con-men, Indian agents, Mexican bandits, muggers, buggerers, bushwhackers, hornswogglers, horse thieves, bull-dykes, train robbers, bank robbers, ass-kickers, sh**-kickers, and Methodists!
Got a pair maybe 6 months ago from Colorado Cyclist. I got the blue Flash with yellow accents. They are comfortable. Maybe slightly wider than my Sidis. Ventilation seems okay. They do not have any large mesh covered areas like some shoes, but I really don't seem to notice a lack of ventilation.
The buckles work fine. The insole is comfortable. The carbon sole seems pretty stiff. The carbon sole will get scratched up and lose the pretty shiny appearance, but that's totally understandable. The thing on the bottom of the heel that keeps you from slipping as you walk (I forgot what the thing is called) is not replaceable as it is with some other shoes such as sidi. So, it will get beat up with time as well.
My biggest complaint is that the sole is coming unglued from the shoe at the heel. It's only a few millimeters now. It has not caused a perceptible problem while riding, but still no sidi shoe I've ever owned has unglued in the 1st 6 months. I only noticed it when cleaning the shoes, otherwise i would have never known. I'm not sure if ColCyclist would do anything about it anyways.
Despite that, I really like them; they are a good sidi alternative just have to see if they will stand the test of time like sidis.