I haven't used the device for a long time yet, but I was very pleased with the complexity and usability of this rather undemanding device. You can easily put it in your pocket, and you have a catalog of guitar chords, a tuner, and a metronome for the needs of dry practice. In short, it can be seen that the device was designed by someone with a very precise and comprehensive idea of ​​what actually not only a beginner guitarist needs to practice. I consider the Cherub WMT-940 to be a very sophisticated device that should not be missing in the equipment of any beginner, but also an advanced guitarist.