Breakfast, lunch, snacks, instant noodles, and Mövenpick coffee are provided, which can save a lot on food and drink expenses. The work can be carried out almost paperlessly, so it is reasonably environmentally friendly.
Don't think you're exceptionally resilient—no matter how resilient you are, you can't withstand it. They make it sound nice by saying there is no clocking in or fixed working hours, but unpaid overtime happens unnoticed. The work can never be finished, and contract workers are treated as disposable. Most permanent employees leave on time; contract workers are like someone else's children, whose deaths never seem to end.