No Rest For The Living

No Rest For The Living is the exclusive Doom: BFG Edition short episode for Doom 2, created by members of Nerve Software, released a few years ago. As a guy that goes in dry and plays doom with no sort of gameplay mods to accent it, I remembered having a lot of fun with it. I've also read some reviews of popular megawads that said it sucked, likely because it was too hard or cheap when played with a gameplay mod that spices the gameplay up. I've been told by a few people that NRFTL is an example of a wad that plays perfectly in Brutal Doom and Project Brutality. I liked playing it a lot, even without mods. I've been looking at it for gameplay and mapping tips in terms of balancing something out so that it's both fun in vanilla doom gameplay and with the application of gameplay mods.

If you've played it before, What do you remember most about it? What did you think of NRFTL?