I am very tempted to back this one. Gorgeous maps by Benoist, legacy of one of the earliest dungeon delves in D&D history with an interesting backstory on how it all came to be as a location to run store patrons through, accruing thousands of hits over the years. Read/watch it all here.
We'll see how I feel as it gets closer to September 2nd. It looks like it could be well worth having, but I've already descended into madness with backing three other Kickstarters....so we'll see.