As said before, the worldbuilding of this one is very interesting (poor Khepras...). I also like the style and the scenario, not to mention the cutscene at the beginning.
I had some difficulty finding where to go next, I got as far as getting to the city and going up on the elevator, but I had no access code. (Also, I lost some money at the casino heh. The music is great, but it really gets in the way sometimes.
I think it's a very unique experience. The layout of the areas may be a bit confusing at times, but the city feels like it exists on its on, even with few NPCs here and there. Nice one!