The fit and comfort are excellent,but I feel they are a little too flexible and tend to fold under if you walk with them while in the water.
This might be part of the design as they are stiffer in the up direction when swimming an are sold as training fins. 3 stars

Before buying, you should note that these fins are designed for swim training. Unlike dive fins, which makes your kick more efficient so you can do lazy kicks & still swim as fast, these fins will make you work! The fins have stiff blades & are designed to maintain your normal kick cadence & amplitude. They work your muscles & are supposed to improve your flutter kick so you will swim faster without them. The fins seems to be working as designed. Will I swim faster? Time will tell. BTW - try them with dolphin kicks too. 4 stars

These are GREAT fins. I have bad joints and the other fins I have tried put excessive stress on my ankles and since they were hard plastic they cracked within weeks. I have used these for the past 6 weeks with no problems and my ankle pain is gone. The split fins make my legs work harder in both directions something that my old fins would not allow me to do. 5 stars

They look like they are good. Others have used them, but i cannot. If you have wide feet, stay away. Not even with boot goo (used for wake boarding), will these fit. 3 stars