I see a lot of complaints that this isn't working, or this caused weird issues, etc etc; some reviews are negatively directed *at* the developer.

1) The software is free
2) The software is complicated; it modifies the system's kexts
3) I'm seeing most complaints for 10.6 and some for 10.5. Which means you if you're doing something that has potential for screwing things up (see #2), you should be using Time Machine. Or praying to your local deity (not OS dependent).

I too am having problems with the Application on my computer, but I'd like to take this opportunity to thank the developer for his hard work.