Life is only based on the duty roster. There are constant changes in the work schedule so that you can rarely keep private appointments. If you want to have certain days off, these are also counted as absences, even if you have your days off. It happens again and again that you have to work 6 days and only have one day off.
More free time, better pay, then the work would be quite ok. From the outside, the image is still very bad. At Securitas work very nice people, unfortunately, they are exploited for maximum profit. Accept any order at any price, in every department there is a shortage of staff.