I am still a happy Path Finder user with one big caveat. I like the latest version, 8, and the ability with modules to set up exactly the features I wish for. I use the Size window regularly when I’m clearing my drives. I own ABFR but my first port of call for general renaming is Path Finder. I’ve no issues with Mojave.
The one fly in the ointment… iCloud drive. If a file or folder is in the iCloud drive but not locally present, it doesn’t show in PF while in the Finder it is there with the download icon in the file listing. The gang at Cocoatech will have to come up with a way to match this behavior. At the moment you have to grant full disk access to view such files and folders but there is no indication that you have to download the file, it appears as if present.
It’s worse in relation to the Documents folder if you’ve chosen to store documents in iCloud. That folder only appears in the sidebar and operates as normal, but if you click on iCloud Drive it is not listed. You can turn on Show Invisibles and it then turns up. This is a bit of a mess frankly. The workarounds are easy but you really shouldn’t have to.