
My main complaint is that they aren't very large, and they're embedded in the text - lots of page-flipping to run this, unless you're going to make a full-color copy to work off of. The maps are beautiful and full-color, and not difficult to read in general - although the numbers don't pop out quite like they do in monochrome maps. Actually it doesn't set a level recommendation for Tomb of Horrors, but you're theoretically going to be 11th level when you start G3 so you should probably be at least 12th when you're finished with it.

The adventures aren't linked as a supermodule, with a common thread running through them, but they are set up in order of difficulty so you could start at 1st level in the first one and move your way up to finally challenging the modernized Tomb of Horrors at 12th level plus.

The Hidden Shrine of Tomoachan (originally C1) Tales from the Yawning Portal is a collection of older AD&D and D&D 3.x adventures, and one D&D Next playtest adventure, converted to D&D5. Published April 2017 by Wizards of the Coast

For more reviews, please see my review page.
