I would take issue with the "robust" part of that. Granted, mini might be moreso than micro, but I've been sorely disappointed with mini itself lately on my cell phone. After a year-and-a-half of plugging in my phone nightly to charge it (and occasionally in my vehicle, but not nearly as often), I've had two cables fail to the point where they don't make reliable enough contact to charge the phone anymore. I thought it was the phone until I swapped the charger and had another cable failure.

Nothing appears to be wrong with the cables; no corrosion, tarnished contacts, bent pins, or whatever. I have various other cables that I plug into my laptop daily that have held up well. Maybe it's just the small form factor.