I have, they are a newer company that just came out like last month or something like that.
Au contraire mon ami. JB Classics has been around since 2002. In my opinion, they are yet another ugly "let's see how obnoxiously colorful we can make our shoes" brand (see Bape, Greedy Genius, et al.). I haven't seen them in many stores as I am sure they do not sell well at all, especially considering that the price tag is usually around $150.