Or lack there of. Read http://www.cnet.com/forums/discussions/laptop-buying-advice/#post-da7ca992-025a-4773-9086-f1d443e405ef

That was a broken laptop at 3 months and calls for 6 months. I'm lucky in my situation but can't imagine what others would do in that situation.

As to reliability, it's important to take care of the laptop and about your comment about touchscreen fails more often. I'm going to agree. The more complicated the machine, the more likely it will fail.

For students a boring run of the mill laptop gets the job done. Here's a CNET fav that I like to mention for students. http://www.cnet.com/products/dell-xps-13-non-touch-2015/