It works really well - I'm basically in love with Pantheon (which IMHO it's much better than GNOME), and I can't recall encountering any bug in the last year.

However, since it's based on Ubuntu 14.04 the kernel and the software versions are a bit old.

In the next months I will switch to Arch or Nix or Void (to have more recent versions) and I may try to port Pantheon on them.