Those are some ambitious builds there. So far I have been put off by the more complex builds, preferring to do them on PCB. But that's not always an option. I like the description of the Megalith:
Create an unstoppable wall of fuzz and vibratory energy, capable of conquering all in its pathway. Its versatile filter circuitry allows for a wide range of tones and textures that allows the Megalith to work well with both guitar and bass.
The MORE HEAVY feature will allow you to cause localized disturbances in the Earth's magnetic field and may cause temporary blurred vision...
I plan to build a Deep Blue Delay some time this year, but that is nowhere near as complex as those. Kudos!