I have had these fins now for almost two years andI absolutely love them. From the first time I got in the water with them to this day I couldn't image using any other fin. I feel I get more power per kick, I use less air, and with the added spring straps they are a breeze to get on and off. I don't even notice I'm wearing them while diving, The one thing I would note is the strap posts are a non standard size. If you need replacement straps or you want to go with spring straps you have to get Atomic specific ones. Not a big deal because they are priced the same as the others, but if you are traveling and you break a strap you better hope there is an Atomic dealer close buy if you don't carry spares with you. In short carry spares.... If your on the fence about getting these jump off and give them a try you won't regret it.