iPhone 6 Plus with the repaired screen for a few weeks without issues. But one day, I put the phone down on the desk a bit hard... and the screen somehow cracked like crazy even though the screen was facing up. I suppose the previous incident weakened the screen already and this was sort of a final blow.
You can see that the cracks occurred near the original hairline cracks and spread dramatically. Much of the original cracks were held together by the glue, but the nearby areas were already vulnerable to crack anyway. While the touch screen functionality was not affected, the cracks undermined the safety of my fingers and the visibility. It was time to try the Screen Glue again.