I've owned the Ecotreads and Vibes and they each have their place. The Ecotreads are great for a wider foot like mine and are comfortable from the start. The Vibes are a bit more narrow and tend to need a bit of a breaking in period for the tightness of the webbing. However, the Vibes lasted me ten straight years of being the only shoes I wore through long southern summers. Now that I have a replacement pair I can go ahead and send the old ones in for repair. It's the absolute best summer investment in footwear.
This review was written in the old system and had content requirements that are different than reviews written today.