Vibram soles are super durable and grippy (these are my go-to approach "shoes" for climbing), footbeds are easy to clean, arch support is great (though not as extreme as the full-strap/non-flipflop model). Best flipflops I've owned.
Expensive for a flipflop (but the quality makes it well worth it, IMO), much much heavier than a standard (i.e. cheap) flipflop (again... quality = redeeming quality)