I used it once and being 6’5” and 72 years old it was much more comfortable than the conventional small boards. The only negative for me is keeping my face in water, it puts a strain on my neck as I have disc and bone missing from a previous injury.
I tried my scuba snorkel, but, it was uncomfortable. I’m waiting on a swim snorkel to try and address the comfort issue. I have been a competitive swimmer since I was 8 years old and swiim about 3 miles a week. Thank you, Robert