This was an excellent adventure. Good job making us really work, tough adventure the whole way. Man I really hate swarms. Had fun though, great job.

I had a blast in this adventure! I owe my experience to my GM who admittedly made the adventure a lot more intense by upping the tension.

I thought this was fairly standard (combat orientated) faire and although the setting is pretty cool, it's up to the DM to make or break the setting with details and roleplay. This scenario could have been really creepy, but it's open to DM interpretation because the scenario doesn't suggest anything of the sort (and would probably offend some people if it did).

I found several things unbelievable, which kind of ruined my suspension of disbelief. For example,

Also, I don't like that Frost gave some of the enemy picks (x4 crit damage), it's the perfect way to ruin someone's introduction to PF (or make the DM fudge).

This is a short scenario (2 hours) and can be played up with the normal risk (because of non-optimal spell selection).

With the right DM (and changes to the scenario to make it more believable), this scenario could be 4 stars (maybe even 5 with awesome roleplay details and a massive royal rumble and chaos), but I think it's more typical that it's a 3 star with most DMs.

As a relatively new player (new to PFS but old to D&D), I enjoyed the details of this module--the opera, the snobs, the cocky enemy behind it all. The PFS mission set-up was a bit obvious--of COURSE the Pathfinder archaeologist was duped!--but for the kids in our group, the faction goals were simple enough to accomplish between hacking up zombies. And we DID hack up a LOT of zombies! :) (And our newer players learned which weapons and spells don't work against zombies.) We lost one 2nd-level PC in the final battle, but we had enough cash to raise him. Overall, I liked playing this module, and it helped me learn about Taldor. All good.

For a year 0 mod this one delivers. It present Taldor in such a light that you can see why it is in decline.
Your characters will be talking about this one many mods later.

A well thought out story with some interesting characters. The combats are where this mod really shines. They are well built and can challenge veteran playing groups which is hard to find in pathfinder society mods.

From reading the module description above, both players & DMs know pretty much what they are getting into, and it's a fun ride! There are some great role-playing moments and combat encounters are interesting -- although players mostly know what to expect. Keep in mind that this is a "funhouse" module where PCs wander from room to room and the monsters jump out. Inexperienced PCs may need some prompting to get them moving in the right direction. Faction goals were a little weak but easy enough to accomplish.

Here's my suggestion to potential DMs: develop the NPCs very strongly at the beginning. Play up the snobbish Taldan attitudes (a Paris Hilton-esque spoiled rich girl who needs a bad boy to piss off her parents, or the boys club of braggarts, scoffing generals) and develop some NPCs for sympathy (slave boy ordered by his child master to insult an ugly character, lost little girl, ostracized intellectual). Later, when these NPCs come back as zombies out for blood, watch your PCs attack with glee or regret their attacks to put the zombies down.

Mood music for your listening pleasure.

...as the PCs get, what they expect and the scenario is well-laid out.
However, I would have liked to see a more complex adaption of the "Undead Opera scenario" - i.e. as a Pathfinder module or as a part of an adventure path. Including some Phantom of the Opera references or any kind of imaginative twist.

One of the several things I enjoyed about this scenario was the directness of the blurb. It tells you what to expect so there’s no feeling of injustice when the battle royal breaks out. The setting for the scenario is really what makes it memorable. Some players may be discouraged from playing certain PCs because of their lack of culture or interest in the ‘fine arts’, but the author has made allowances such that all PCs will have their chance to shine in the course of the scenario. Play the character you want to play (but pay attention to the blurb too!).

Also, I enjoyed the glimpse into Taldan society. It helps the players who don’t devour the sourcebooks to understand what Taldor is all about and why it has fallen into decadence and complacency. Anyone who plays this scenario will forevermore carry an image of the Taldan faction in their minds.

The scenario can run very quickly also. As with Mists of Mwangi, a prepared DM may run it inside of two hours. I like to pre-draw my maps in color on giant graph paper, and the opera house is wonderfully detailed and if you take the time to give it the attention it deserves your players will sing you praises :).