I'd like to start using Argyll for printer profile generation, but I was wondering if it was worth using one of the GUIs that I understand are available. Based on what I've read, however, it appears argyllcmsgui is the only one that offers the ability to interface to Argyll's printer profiling functions. Is this true? If so, has anyone used it? Does it expose (through the interface) all the functionality that is available via command line?