This "module" is full of interesting rooms - but I put module in quotes for a reason. This so obviously started as a delve. The rooms really have no bearing to each other. It is very apparent most of the rooms were developed separately. As a delve, this is a death trap dungeon and not suitable for use in an ongoing campaign unless you want to end it with a TPK. A good number of rooms also have a strong SciFi theme which many will not like in their fantasy.
I like the background of the city the dungeon is set in. I like the story idea. I like the BBEG. I am actually using this in my campaign but I cut most of the dungeon only using rooms 1-4, 13 for the first level - using 9 to guard an alternative way into 1. I cut out the second level all together and connected 4 to 25. I’m using 25, with 25 connected to 28, 30. Room 28 connected to 31, 32, 33, 35, 36. The battle with the BBEG is going to be tough but fair for my five man party of 8-9th level characters.
This was called a “D” for Dungeon module - but that is the weakest part of the adventure with me only using 14 of 36 areas. If 4th Edition was not coming out fairly soon I would probably get some use out of the rooms I cut out because many are interesting and could be BBEG encounters or lead ins in their own right – which should tell you how lethal this dungeon is for its 7th level character design. If you do want to run it, as is – Paizo has included a set of pregen characters – I doubt they would make it much past a few rooms on the second level unless they were very clever or lucky. I'd give this a 2 except some rooms are really well done as is the BBEG, adventure background and setting.