I bought these for my son after trying the same pair on in a shop. They are great, although the suede on the toe didn't wear very well. I got a reduced price for them so I didn't mind, but if I'd paid full price I would be quite annoyed.
My son absolutely loves his Gup X. He is a massive Octonauts fan, so it was always going to be a winner. It's pretty sturdy, but the back wing doors are quite tricky to open. It doesn't stop him playing with it though. Don't pay full price for it though, there are always deals about.