Got these as what I thought would be a starter carbon blade, but after numerous dives they're still kicking strong. I've used them in the ocean and freshwater no issues!
Good transfer of energy and the rails help cut the water with ease. Definitely get you some of these bad boys, my only improvement is coming from a mostly freshwater diver would be that the pockets could be changed, but if you're not wearing 5mm socks or thicker you're golden!