Yes, I sure have. Works good. In fact quite a bit of the cracking I was able to do was due to it. The difference b/t this and it is that you can work with the maps in 3-D, so getting a good, smooth map is much easier. If I can figure out what's up with the emulator/ecu interface that is preventing the values being manipulated real-time that will be an option too.
Attached is an example of a fuel map, I would expect that you would agree that the interface is more intuitive than text.