I expected the d20 to have a special face on the 20 side (something D&D has done before). Or for the dice to have some kind of design related to the adventure (something Pathfinder does with its Adventure Path dice sets). Instead, they’re an opaque, dark green set with white numbering that’s fairly plain. (Oddly, the d20 is a paler green than the rest of the set. They don’t quite match.)
They roll well and seem well-crafted. The extra d6 are a nice touch, and the crisp white numbers on the dice are easy to read, especially from a distance on the table.
Will I use the dice? Certainly.
Would I purchase the dice? Probably not.
The short version: I like these dice fine, and they’ll find a spot in my dice bag and on my gaming table, too. I’ll likely use the tin to cart around miniatures or tokens or something. But $20 is a big price tag.
These are priced high enough that they’re definitely for collectors who want anything Tomb of Annihilation-related.
If this product was in the $10 to $15 range, it’d be great, especially for new players.
But $20? It seems like a lot for a standard set of dice and a tin. You could buy two sets of Chessex’s fanciest dice for about the same price.
That said, you may be in love with Acererak or Tomb of Horrors might be your favorite adventure. Perhaps the tin is just what you need.