I only use the headphone jack for a wired headset telephone style headset, I only very rarely listen to music on my phone. For my use case, getting a charging headphone adapter dongle and leaving it hooked up to the headset I use, will serve my needs perfectly.
And that may be how I go, but for now I have no need to upgrade. iOS 11 hasn't given me any of the issues on the 6S Plus other people talk about (perhaps because I use my iPhone in a more limited capacity than many other people).
