I ran this product online as part of the full trilogy as a premiere at Aethercon last month. There's definitely significant theatre of the mind sections here that make running it online something of a challenge, as you don't have the benefit of facial communication to supplement verbal descriptions and rough drawings (without commiting to doing up proper graphics for locations that the characters are purely meant to walk through).
I certainly like that this was an adventure designed to be solved multiple ways, where all of the challenges thrown in front of the party can be through any of the three pillars, as long as the DM is cognizant of various environmental factors and hidden tidbits of information here and there that might be obscured by the formatting. The timing of Objective A and B seem to be meant to be totally flexible, but if done following the suggested Flowchart, they don't quite feel right.
Bonus Objective A seems to give benefits that help in completing Main Story Objective A as well as B, and it probably makes sense to have it so that this Bonus Objective can be completed before Story A gets all that far along. Also, Story Objective's A Scene D doesn't appear to be clearly demarcated as being some kind of navigational skill challenge that happens over a time period after Scene B/C.
That being said, I certainly appreciated the kernels of material in there for roleplaying that I got to ham up, though, you do need cooperative players who buy into some of the silliness of the situation, and especially the rather goofy miniboss at the end.
[3 of 5 Stars!]