The use of Mirasys software both minimizes the maintenance and results in the productive use of the security personnel deployed, leading to a fast ROI. Mr. Mario Gärtner, head of the IT department at the Estrel Hotel, said: “With the Mirasys system, we now have an instrument with a powerful set of functions that allow us to monitor the diversity of facilities. In addition, we have an open possibility to expand the diversity and complexity of our security systems in the coming years. Ultimately, we have not only been able to improve the protection of our property, but also optimize the safety of the individual guest as well as the protection of major events.” The privately owned Estrel Berlin is the largest hotel in Germany. It has 1.125 rooms and suites, five restaurants, three bars, a summer garden with a private landing pier, a modern fitness and wellness area as well as a small railway station offering special train rides. Connected to the four star plus hotel is the Estrel Convention Center. Its total area of 15.000 square meters and over 60 meeting rooms offer ideal conditions for events of different size and type.