I am of the firm opinion that you can't have too many running shoes, so, to prove my point I have added these to my collection.
Once you become interested in running shoes, you begin to notice their different characteristics. Soles, uppers, their laces, the drop (which is the difference between heel height and forefoot height if you really want to know) - to say nothing of their overall design and colour. The latter is important - if you don't like what is at the end of your legs, life is hardly worth living, is it?
Everyone has their own preferences. Some like minimalist shoes, other heavily cushioned. I prefer the latter. Once you have experienced the rebound when your foot strikes the ground, anything else seems rather, well, flat. These have what Asics call Flytefoam along the whole length of the sole, but it is most noticeable in the heel giving you that essential propulsion.
In contrast to another of my favourite running shoes - the Nike Lunarepic, whose upper is made out of what Nike call Flyknit, these Asics have a much more structured upper, which controls my footfall securely.
I like the blue and yellow colour scheme. The Dynaflytes come in a special edition range (only available from Asics as far as I can see) named after cities. It took a while, but I eventually realised that the colour schemes are named after the country's flag - so yellow and blue for Sweden. The Tokyo variant is, not surprisingly, red and white.