Cable arrived in the post today, so I hooked it all up and I've got me a datalogger!
Everything worked first time with no problems. Its got live monitoring, both digital number and graphical lines, so it reports the information live, and at a click of a button save data logs which you can review later on.
It reports any error codes on your ECU, what they mean, and allows you to clear them. Luckily mine doesn't have any error codes so all seems to be in good shape!
There's also a sensor diagnostic section where you can run diagnostic tests on various components. I haven't tried any of these yet as I haven't read up on it and don't know what they do yet but it looks pretty handy to be able to do that for any troubleshooting I might need to do sometime.
I went for a short drive with logging turned on for rpms, knock count and timing and took a look afterwards. My knockcount is 0 all the way through which I reckon must be a good thing. Timing goes up and down but I have yet to work out what the figures mean.
I've only played around with it this evening, and don't really understand what a lot of the numbers are telling me (good, bad, or whatever) but I'm pretty impressed with how easy it is to use and the fact that it worked straight away with no probs whatsoever.