There used to be issues with external monitor flicker in the xps 15 but they were solved some time ago, the only issues I know of that remain (and they drive me

There used to be issues with external monitor flicker in the xps 15 but they were solved some time ago, the only issues I know of that remain (and they drive me crazy) is connecting external displays through a usb-c dock (such as the dell TB15) - but at least in my case it's not so bad. Trackpad is excellent - responsive and smooth. two finger scroll, pinch to zoom and just normal delay and sensitivity is great. Not sure what more one needs (I don't use 3 or 4 fingers really). Never had coil whine.