I agree - it's a little dated as a solution due to people having problems using the Parallel cable with Windows XP and the slow speed. I used it years ago with a Windows 98 machine, and the software is indeed freely available on Aminet (PC2Amiga). As a result, it's still built into my ClassicWB packs even though I doubt many use it today.
Speed is about 60-96K/s, and it can lose connections from time to time. I found it was best to archive stuff up first before sending it over.
You are much better off with a PCMCIA solution or IDE-CF adaptor for transferring files.
Wrote quite a bit about it here: