I currently have a Samsung Galaxy s6, and this case works well for that phone model. I did have to take my 'every day' case off to make it fit, but I expected that to be the case.
The material seems durable and is sealed well. The closing mechanism is neat and seems to be a good way of ensuring that the seal is tight enough to be waterproof. I have not used the lanyard so I cannot comment on that. The case does not interfere with my touch screen which is another feature that I appreciate.