This is floor 1 for my Megadungeon campaign, and it's worth every penny. The rooms are pre-numbered, thank crap, and have just enough icons for inspiration while still leaving room for creativity. The maps are high-res and the grids uniform enough that you could upload the images to a VTT without running into alignment problems, though sheer size might cause lag, so you're better off uploading the section maps instead.
The map has a few dead-ends near the edges that look like collapsed tunnels, making it easy to expand the delve even further if you so desire. Just grab another great Paratime map and hook it up!
I can't say enough good things about Paratime Design. Grab this map if you need a big dungeon - it won't disappoint.