Pretty straight end enjoyable, no time wasted for long searches made the dungeon fun.
I have to stress here, that I never attempted a full build, so this is a shaky verdict based on little experience on the subject. I liked the teleporters leading to certain levels (and back!), the way monsters were balanced well to have a chance. Teleport to knights/Couatls was definitely a shock and well done...
I'm not good at working only with the mouse, otherwise it would have been 5, but since the Rock Piles/Ogres early on made problems I will rather go for the higher rating. Golems in Firestaff level were tough since I hardly trained my party, afterwards the Cavern was a walk in the park...
There were hardly puzzles except figuring where the teleporters went, the rest were (solid) copies from DM. I'd like to add that for this dungeon/story the amount of riddles felt appropriate.
Somehow I don't like this rating, size does not say anything about quality, and in that case I found it nice not to have such a long dungeon, so I'm giving a high rating.
See above (straightforward).
Solid work, little flaws (some pits going nowhere, non accessible areas, levels 9 to 12 could have been "blanked out").
I liked the plain approach towards the end with firestaff-dragon-demons-golem-chaos...
Good gameplay-feeling, progressive difficulty, some nice surprises like trap that lead to knights/Couatls (which I went down on purpose just to curse myself afterwards).
With tendency towards 6.
Facing knights + Couatls for the firestaff, teleporters to and from cetrain important areas, well-balanced monsters.
Daar dungeon (could find no use for that, came much too late).
Many times my engine would speed up after saving, but that seems to be a general problem and led to myself getting killed quite quickly if I did not watch that. Party names were not very inventive, but the balance of fights, lots of good items and various monster approaches made the dungeon very enjoyable.
It seemed to me I gained levels faster than normal - but maybe that was just my impression, I did not verify it.
Anyway: good dungeon, was fun to play it - keep going!