It is hard to review a map like this. The original (by Tim Willits, id Software) was kind of hated for not including a rocketlaucher or lighting gun in it. However, it was a good, solidly designed map.
This Q3A conversion has been made from the original released .map file (I'm guessing). The texturing is bland, almost mono-textured and the gameplay is not much fun either. The jumps (to YA over lava etc.) are very easy now, the nailgun has not been replaced, just removed and the lighting is dark.
One of the better conversions. The main problem being the gameplay and game physics has changed where the map has not.