A:Answer I can't speak for the XPS15, but I did not enjoy the XPS13 at all. I've never had to send a laptop in for service, but I've heard the Dell service center is a little better than the HP one. Again, I cannot confirm because I have never used their services. When it comes down to the specs, both of the machines are going to be great for what you are doing. the display on the HP is beautiful, and I run video games at the highest resolution and the highest settings with usually no lag. This is almost as good as a good desktop in that regards, and for designers or artists, the touchscreen and the included pen are amazing! the first thing I had to do after unboxing this device was to install the adobe master collection, I simply love it. the only pitfall I would really complain about is the hard drive size. it is a solid state drive so its fast, but SS drives are really small. The limited storage and the unease of increasing it without an external drive are where this starts falling behind desktops, but for most folks who have other computers or external drives, this is an excellent computer.