I'm riding on an Azoto. My bike came with a Flite.
One difference is in the Aero position, the Azoto provides nice cushion for those parts that you are pressing up against the nose of the saddle, where the Flite simply makes them hurt until they go numb.
The other difference is when I get on the bike with less then optimal padded shorts (as in just about any tri type short you can swim in), I can ride without pain. On the Flite if I tried that I'd not be happy at all.