The only problem I ever had with this piece of software was using version 1.1.3 to back-up to a Tiger server. I didn't realize it wasn't Tiger compatible yet and when I contacted the developer he responded immediately that a Tiger version was on it's way shortly.Out came version 1.2 and it's been smooth sailing ever since!
I recognized a limitation when I tried to sync a mounted volume on a clients machine but when I e-mailed Scott he (again immediately) responded that it only worked with items in the home folder. He also gave me a solution to my problem by creating a symbolic link to the volume in question with instructions on how to do it.
I can't say enough about the product or the developer. Great product and even better service. Thanks Scott!!