The Metaspeed Edge is the ASICS racer for cadence-style runners — the ones who find speed by taking more steps rather than longer ones. The Tokyo version puts the new FF LEAP foam in the top layer of the midsole over FF TURBO PLUS underneath, so the heel does not sink away mid-stance, and a full-length carbon plate holds the pace together in the closing miles.
It suits you if you race regularly, anywhere from 10K up to the marathon, and it is your turnover that rises when you push. If your stride lengthens instead, the Sky Tokyo is the one built for you.
It is not a trainer. The stack is built for racing rather than for volume, the low 5 mm drop puts more work through the calves than a daily shoe does, and the foam gives its best over a small number of hard efforts.