One of the main advantages is the speed of the analysis.
You can get results in a fraction of a second. At the same time, the sampling frequency can be more than 1 kHz. This allows you to visualise the distribution of the different elements.
You do not need any special sample preparation the samples. The individual analysis gives you information about the entire element composition.
Also, capture the profile of multilayer materials. LIBS is sensitive to most elements in the chemical table, including light metals, which are problematic for some of the competing instruments.