Hi, I recently got my XPS 15. And the first thing I did was to install Ubuntu Mate today. After a few hours of tweaking here and there, I finally have it almost set up.
So, here it is:
Also with screenfetch
./+o+- xypnox@xypnox-XPS-15
yyyyy- -yyyyyy+ OS: Ubuntu 16.04 xenial
://+//////-yyyyyyo Kernel: x86_64 Linux 4.4.0-104-generic
.++ .:/++++++/-.+sss/` Uptime: 1h 23m
.:++o: /++++++++/:--:/- Packages: 1780
o:+o+:++.`..```.-/oo+++++/ Shell: bash 4.3.48
.:+o:+o/. `+sssoo+/ Resolution: 1920x1080
.++/+:+oo+o:` /sssooo. DE: MATE 1.12.2
/+++//+:`oo+o /::--:. WM: Metacity (Marco)
\+/+o+++`o++o ++////. GTK Theme: 'Arc-Darker' [GTK2/3]
.++.o+++oo+:` /dddhhh. Icon Theme: Papirus
.+.o+oo:. `oddhhhh+ Font: Ubuntu 12
\+.++o+o``-````.:ohdhhhhh+ CPU: Intel Core i7-7700HQ CPU @ 3.8GHz
`:o+++ `ohhhhhhhhyo++os: GPU: Mesa DRI Intel(R) Kabylake GT2
.o:`.syhhhhhhh/.oo++o` RAM: 1248MiB / 7835MiB
/osyyyyyyo++ooo+++/
````` +oo+++o\:
`oo++.
The dock above is set to autohide, and I like it that way. 