Its interface takes a bit of getting used to in that it's not the most intuitive application and uses unorthodox terminology (i.e., "Mask" instead of "Filter"), but it is a handy little tool.

I did find one glitch, however, and that is that it doesn't know how to work with commas in filenames. At least, I couldn't get it to work. I don't know if there are any other characters that it can't handle, but I know commas don't work. So, I still had to go and make those edits, manually.

Because of that, I give it a less than perfect score and can't recommend it as a solution for someone that is looking for it to work as expected.