The GIADA (Grain Impact Analyser and Dust Accumulator) Team is responsible for a scientific payload for the Rosetta mission able to measure dust flux dynamic parameters in cometary coma. A first set of sensors (MBS - Micro-Balances System) is based on 5 quartz crystal micro-balances, with the sensitivity to measure very small mass, both cumulated and from a single particle, deposited on the sensing surface. It will be used to derive the flux from different direction inside the coma. Another subsystem (GDS - Grain Detection System) is used to detect the transit of single particles, and together with the third sensor (IS - Impact Sensor), which measure the momentum, is able to determine velocity and mass of the impinging cometary particles. The status of the experiment, its foreseen and measured performances and the scientific capabilities will be presented.