The iOS update is being downloaded on an iPhone 5s, which is relatively new and has minimal third-party apps, reducing potential compatibility issues. The download size is 1.8GB, and initial reports indicate no major problems, with users noting improvements in battery life and minor interface changes, such as a new font and app closure screen. A specific feature of interest is the new transit option in the Maps app, currently available in select major cities like New York and London. However, some users have reported issues with devices crashing after the update, as highlighted by external reviews and news articles. Overall, the update process took about half an hour, and early experiences suggest stability with no app crashes reported.