i demoed them once, and i was impressed. they skied switch really well and had good pop. most of all tho, they felt super stable despite being two sizes too small for me. where as on the two sizes too small foils, i felt like i was gonna die once i got goin past like 30. as far as the edges go, i've heard of a few durability problems, but rossignol is uber legit in their warentee.