I have previously used the Asics Ds-Racer as my racing shoe, but wanted to try something new. I went with the Gel-Hyperspeed 2, and this proved to be a wise decision.

The build-up of the shoe is like none other I have tried.
The heel is almost completely non-existent, which makes it virtually impossible to land with the heel first, making it easier to run on the forefoot.
Forefoot-running is after all our natural way of running, try running barefoot and see.

This shoe is very light, has a good fit, and shows no tendency to blister my heels, as opposed to the Ds-Racer and Ds-Trainer.

Overall, I couldn't be happier. This shoe will be my steady companion in races and training in the future, no doubt about it.
I use it for everything, even long slow runs. They have enough stability and cushioning, for the light runner.

I had to go up half a size in these, compared to both my Asics Kayano and Racer, something to think about.