I ran The Rot From Within trilogy when our hardcover adventure made it back to Port Nyanzaru. The hooks into each adventure and the trilogy as a whole were fantastic (though I recommend DDAL07-07 before DDAL07-06), and it served as a great interlude.
Be warned: this is not a 2-hour module.
Our group usually makes it through a 2-hour module in the 3 hours allotted to us. I deliberately slow things down and let them take their time to make for a more fulfilling experience, rather than finishing half an hour early or more.
For this module, I warned my group that it is very long for a 2-hour module, and that I would need them to move more quickly through combat in particular. We started about 10 minutes early, and managed to finish this module in 3.5 hours, going just over our allotted timeslot, despite rushing through it. If you have the appropriate-faction PCs in your group, there are four fights. We skipped the faction-specific fight entirely; I simply estimated how long it would take them to defeat the single enemy (2 rounds), and simulated the effects of it making attacks for those rounds, so that they would be appropriately worn down for the last fight.
Three Pillars breakdown:
Combat: 75%, 5/5: Combat is well-balanced and compelling (my party loved the girallons and giant ape)
Exploration: 15%, 3/5: not much to explore, and what there is is... slightly confusing
Roleplay: 10%, 4/5: Very little roleplay, though it is compelling and feels good for the players