Most owners who talked about durability say it keeps working. One reports over 2,000 hours with no drama; another moved from fighting a Prusa with PETG to clean carbon fibre nylon and ABS prints every time. A minority describe reliability problems, and when those owners needed help, the support experience was more often a negative than a positive.
The long-term record is thin. Many of these accounts come from owners in their first weeks or months, and the highest hour count mentioned is a fraction of what the same owners report on decade-old machines. How the P1S holds up at 10,000 or 40,000 hours is not something these owners can yet say.