A friend recently switched to the mac, and I recommended QS to her after years of being happy with it. The discussion then ensued about why QS is better than S

A friend recently switched to the mac, and I recommended QS to her after years of being happy with it. The discussion then ensued about why QS is better than Spotlight, and the best I could come up with is that I like the fact that QS can be configured to show up in the center of the screen. The configurability and wealth of plugins is nice, but to be honest I don't use many of them, so it's not a huge deciding factor.