I used to have good luck with those, but the last one I ordered had a dodgy GPU and lackluster build quality; I had to RMA it, which was a bitter pill consideri

I used to have good luck with those, but the last one I ordered had a dodgy GPU and lackluster build quality; I had to RMA it, which was a bitter pill considering how much I'd liked the brand. But the previous machine I had from them was going on 6 years old, and after that experience I wasn't confident about owning one of their modern machines for that long out of warranty. (Full disclosure, I actually ordered from Eurocom, not System76, but they sell the same base models. No complaints about Eurocom, which is a terrific company, just the machines that they rebrand.) I wound up with an Asus UX303UB - it was about $500 cheaper, much lighter, slimmer, sturdier, included a touchscreen, and had better or equal components on all counts except the discrete GPU, which is a fairly wimpy 940m but good enough for my purposes. It also works great out of the box with Mint 18 / Xenial. My only complaint is that the design doesn't emphasize replaceable parts, but the important parts still seem to be accessible and you pay a price for slimness. Sadly, I'm not sure how much life the Sager / Clevo kind of brands have left in them, if they can't corner the 'durable and functional brick' market anymore. There are some genuinely solid prosumer offerings, these days.