Well, I primarily used Launchy and now FARR to find files and documents. (I'm a grad student in American history with 1000s of PDF and Word files on my HD split into specific folders. With some type of indexing program, as you might imagine, it's much easier to access those files.)
The most significant issue I had with Launchy related to its CPU usage. When it periodically re-indexed, my CPU usage would nearly top out. But, more significantly, at odd times it would do this and it wouldn't end. And it seemed that the only way to solve the problem was to either go without Launchy or close all my programs, shutdown the computer, reboot, etc., all of which was a big pain.
I had other random issue with it, but that was perhaps the most significant. Comparing FARR and Launchy, I just like the interface and style of FARR much better, in addition to it seeming to use less system resources, etc.
Plus, FARR seems much more customizable, but I'm just learning that stuff.
Once again, I'm sure this is obvious to experienced users: Does any anyone have any tips on how to force my most desired result to the top. For example, when I type "desk" desktop doesn't even list in the first 15 results in FARR. But when I finish the word to "Desktop," it does. How would I go about making my desktop the first result for "desk"?