I've been using a Dell XPS 15 as my daily work machine for the last few months and I can say I've had all of those problems. The machine has really loud coil wh

I've been using a Dell XPS 15 as my daily work machine for the last few months and I can say I've had all of those problems. The machine has really loud coil whine even after contacting Dell and having them replace the motherboard and other various internal components (I think they practically replaced the entire laptop at this point). The trackpad is definitely not great and I used an external mouse to do any serious work. I had the touchscreen variant and while the resolution was great I never once used the touchscreen. Overall it feels like a product owner at Dell wanted to match the MacBook Pro's specs but forgot to think about how all the parts fit together. For example, both laptops have backlit keyboards, but only the MacBook Pro can automatically adjust the backlight to ambient light (if the Dell can do this, I've never seen it work).