Hello Smoffatt,
I purchased the Adjust+ software back in November, 2008, but didn't install it until a few days ago.
The software itself is extremely intuitive and easy to use. I think Michael Fremer's review of the software is very successful at describing what Adjust+ does, so maybe I find it easy to use because I was already familiar with its features and how to use it more or less.
There is certain computer and software requirement as with most software packages, so it could be plug-and-play based on computer/software configuration.
I'm using it on a MacBook Pro running XP on Parallels Desktop and Adjust+ works just find indeed. I purchased the Creative Soundblaster 5.1 Surround external USB soundcard along with the software, as well as the loopback cable for the calibration.
The software is as simple to use as a utility software. The only measurements I've cared about so far are azimuth and speed. The process for both measurements could not be more straightforward to me. So far, I'm very satisfied with what the software does and how it works. I was very happy to find out that my Dynavector XV1s cartridge just needs 0.2 degrees of tilt for correct azimuth.
There is no way to go back to traditional analogue methods for setting up azimuth and speed. The future of analogue is here today!
Best,
iSanchez