Have you ever had to do this?

The Dell XPS 9350 (Skylake) has numerous issues with GPU noise, USB-C compatibility, wifi reliability - Dell don't care unless your consumer laws are strong enough to make them care.

No but dell had a 30 day full refund policy. Did those bugs not start until day 31?

TBH, everything was covered by warranty other than the coil whine and wifi - by sticking to one particular driver version you can avoid many of the wifi issues. Not everyone has had the USB-C problems and it's gotten a little better with the most recent updates.