I think it is a fun bag....great for summer. It may not be a bag I would invest in simply because it's price does not equal the amount of use and longevity for me. I say, if you have the money to burn go for it.
I have not seen this type of bag in person and have no idea how many parts are rubber or what not.. but I worry about the longevity of rubber.
Have you ever had a pair of rubber-soled shoes disintegrate on you while walking? I have! Far too many times!