I just walked in for fun. I'm from the states and have always been a fan of DWR.
What I liked most about this store is they don't "breath down your neck" to buy something. I was initially approached when I walked in and provided a bottle of water and reminded I could ask any questions. I was free to roam and explore without being followed by a sales person.
It's a beautiful store, well laid out, and totally relaxed atmosphere.
I highly recommend popping in even your not interested in buying anything. No pressure! In the States they tend to hound you, but not here.