We were walking up St. Denis and saw the sign for this shop and just had to stop in!
The staff was welcoming, friendly, knowledgeable, and understanding of our limited French skills. There was a pretty great selection of fun geeky things and I will definitely have to come back to pick up some birthday gifts for the geekier friends/relatives.
I really enjoyed the store's vibe--it was clean, well lit, filled with things for all different types of geeks and encouraged browsing.