Although the concept of the conversions is very good in practice, the template format used is overly generic. As an example, all "kobolds" are treated as generic kobolds. This removes much of the flavor of "very large guard" kobolds, as well as the "kobold chieftain" (pg. 15 of the original module). These could easily use the DnD 5e wiki stats for "kobold warrior" and "kobold boss" respectively instead. Another standout is Green Slime, contributor recommends to treat as Ochre Jelly. Green Slime is listed on DMG pg. 105.

The bright spot of this conversion is the Notable NPCs. This is well done and informative.

Pages 7 and 8 of the conversion is repeated information from pages 4, 5, and 6 of the conversion. These "reference sheets" for the initial reference sheets are redundant and confusing. Again, this is not a fault of the contributor, it is the template.

Furthermore, the monster conversions themselves would be much more useful listed by module area and room number, rather than simply alphabetically. This is a problem of the conversion template itself, and not particular to this contributor.

Bear in mind that this module, B2: The Keep on the Borderlands, is widely considered one of the most iconic of the old school modules and is routinely listed in the top 15 modules of all time. That said, it (and other modules such as Ravenloft, Isle of Dread, Castle Amber, etc.) deserves a more thoughtful conversion.

Particularly modifying treasure awards in the conversions is also necessary. The amounts of treasure listed in the originals is massive due to the old mechanic of awarding xp for gp looted (and the much larger xp needs for level advancement). If DMs use the listed treasure values, they will quickly wreck the economy of thier own games.

In closing, the conversion idea is great, the execution however is bare bones, incomplete, and redundant. This is not a criticism of the contributor, it is a criticism of the universal template used. I would not recommend the Dungeon Masters Guild conversions in their current format for DMs who wish to use their classic modules. Strong overhauls to format and treasure would make these conversions a must have.

I thank the contributor for his effort to the NPCs. Again, well done.

-Craig