Difficult to tune (near impossible; but really, it's for finger placement practice, not playing)Flexes when you press a string, making the others change pitch (again, it's not for playing, it's for finger placement practice)Strings are close together (difficult for adult sized fingers to not hot other strings - but it's not for playing, it's for practicing :) ).Difficult to hold, and strum, and practice finger placement (Where you strum is just plastic, no stings, you're really just practicing finger placement, timing, and rhythm technique with this)I'm giving mine to my son who plays guitar occasionally