Very well thought out adventure. Well written and easy to read through. This is an NPC heavy adventure (to really get the most out of it). There are lots of relationships, plots, etc. to keep track of, with some tidbits sprinkled throughout the material. Plan on spending a good bit of time prepping for DM'ing this. I had to create an NPC list to keep track of the cast of characters (57!), who they are, backstories, allies, etc. etc. Quag Cove is a really rich location. The overall adventure is deep in story and good fun.

Very very basic conversion. It seems to only contain a simple creature MM 5e translation but without much in the way of difficulty adjustments. Very little updated on NPCs as an example. I didn't find this guide very helpful at all and was about the most basic of conversion guides possible.

Thankfully I later found Brian Rideout's T1-T4 5E conversion. That guide contains additional background material (researched based on the classic modules, associated video games, etc.), enhanced information on the story line to help the DM, quite a few great additional enounter ideas to improve the experience for everyone, and properly converted and balanced encounters (including NPCs).