Check out this rope trainer machine - Good for swimmers?

Hi, At the gym today I noticed this new rope trainer machine called Marpo VLT Rope Trainer. I started using it to simulate a high-elbow catch and pull. It seems like it could be pretty effective. Any thoughts? Has anyone tried this or something similar? The images below expand if you click on them. 12296 Below is a diagram from the VMX model that shows which muscles are used - but I think its the same with the VLT. 12297