Technically there isn't anything really wrong with this place.
Only thing we felt was that this is just another shopping area. Shops were selling pretty much their own brands of clothing, bags and accessories. Apart from that the streets were nice. But nothing more unique than other streets in Amsterdam, e.g. the street along flower market..
We allocated 3 hours for the nine streets. Ended up walking around for at most an hour and decided to head back to flower market which was way more interesting.