On a weekly basis, the Mac won't wake from sleep and requires a hard reboot. The Time Machine backups get corrupted at least every other month and require a full backup from scratch. Sometimes the audio just quits working when I wake from sleep. The App Store is some horribly wrapped, unresponsive web app. Disk Utility is useless. Etc, etc. It's a horrible mess of an experience.
The Dell running Linux is far more stable. I can get literal months of uptime out of the Dell using it on a daily basis w/ 100% hardware functionality. No stereotypical Linux desktop pains. And this is coming from someone who was an Apple fanboy for 10+ years. Apple's QA just went to shit and I was sick of dealing with their bugs.
Edit: For those telling me it's a hardware problem: it's possible, but I've had similar experiences w/ the wake-from-sleep issues on two different copies of the 2016 15" MBP, and the Time Machine corruption on a MBP and an Air. So if it is a hardware problem, then their hardware QC is as bad as their software.