I have already reviewed LaunchBar, and I love the product, but I came across an issue and contacted support. In the first email I got from them they said the issue was with a system library, but, they didn't leave it there. The support person attached an applescript that got around the problem.
Then, about a month later I get a second email from support saying that they found another way fix the problem without applescript, and they showed me how to do it.
So, not only did they not just drop it at "it's Apple's problem, not ours" they continued to work on the problem and found an actual solution, when their first fix worked just fine.
I totally would recommend launchbar, and now that I have had the pleasure of interacting with support, I would recommend it even more so.