MZCH I have been using ExpanDrive since 1.3.4. I have some FTP accounts and amazon S3 account. In every account ExpanDrive absolutely works without any troubles. I am also a PathFinder user and I can access remote volumes mounted by ExpanDrive as well as internal volumes with PathFinder. Of course, It's not say that I have never had a bit trouble, but the trouble caused by a certain third party device driver and ExpanDrive had nothing to do with it. I'm sure ExpanDrive is worth the price or more.
(Version 2.0.1)