The map is awesome, great layout, architecture and texture choice. One of the best looking maps ever created. Some people rate it down because of its high difficultly due to the massive amount of monsters in some places. Even if I'm not that skilled I had my fun with this map.
The Artifact is a classic 1995 three-level mapset. It might be one of the highest-quality 1994/1995 productions I've seen, standing alongside such releases as UAC_DEAD or Galaxia. Much like them, Artifact has something of an unique air about it... a feeling of a true adventure, where you can palpably feel the author's enthusiasm and creativity as you go, each new room and area somehow feeling unique and lovingly crafted despite the simplistic looks. One downside of the mapset is that progression is occasionally confusing (such as one door switch on map03, hidden on a column that lowers into the ground).