I previously owned a Dell XPS-15 from early 2014, The top spec model with high-res touchscreen and quad core i7, and had no end of problems. I wonder if they ha

I previously owned a Dell XPS-15 from early 2014, The top spec model with high-res touchscreen and quad core i7, and had no end of problems. I wonder if they have resolved the ongoing quality issues that seemed common back then such as coil whine and the amazingly poor battery life from models with a dedicated GPU. The specs seem good though, and the 13" model seems promising.