agreed; i've been runing quicksilver non-stop since before the developer passed the project on to others. for a time, it was sluggish and caused some problems. but i have no complaints to speak of about the last couple iterations.

i switched to quicksilver from launchbar, in spite of the fact that i'd paid good money for launchbar. it's not so much that something was wrong with launchbar; it's only that quicksilver was noticeably better in many respects (flexibility, esthetics, flow), imho.