I feel when you're rating a store, you have to know its niche...J+O is obviously selling top designer products so you'd expect a high price tag. Anyway...
Been here a couple of times. I personally feel the men's stuff is sometimes too hipster-y feeling (well, what did I expect? haha). They know what's in trend very well. The pricing varies greatly - I see some items are not marked up, while others are marked up around 10%, then I see this item being marked up 30%! I would personally wear anything they sell here due to the hipster factor though. However, it is good to take a look at J+O when they have the end of the year sale, because some products are marked down a great deal and then it makes it sorta worth it to purchase.