Yes, he is! :) I have also tested another, cheaper alternative. The Fatboy is much better in terms of material and workmanship. It's very comfortable and doesn't lose air so quickly. You can even lie on it in the water. However, it takes a bit of practice to fill the Fatboy with air properly.

IT DEPENDS ;-)
If you don't know how to do it, it can be a bit embarrassing in the pool or on the beach... So you have to practise it a bit beforehand. It's not quite as easy as in the promotional videos (where there was probably a bit of wind). But it's not that bad, because if you can't get enough air in, you just close it a bit more and you have a comfortable armchair instead of a comfortable sofa.
I only know the original and paid special attention to that when I bought it. Also... because it was a bit mean that the brilliant idea was copied within a very short time.
All in all, it really is a "humorous" and comfortable gag. Before you drag along a deck chair....