I took a look at it, but I'm a bit of a brick instead of a sponge when it comes to soaking up new knowledge. I couldn't figure out how to use it.
Bear in mind, though, that I haven't figured out MS Excel yet either, so it's not the fault of your program. Some of us (well, me anyway, lol) just need clear "Step 1, Step 2, Step 3" instructions in a program. The whole query thing is probably perfectly clear to programmers and database users, but it flew right over me... never even touched my hairdo.