I feel as if I should give an overall review of this project. Here goes:
Wooo.wad is an interesting creature. It isn't exactly a straight up joke wad like Mock2, nor is it an entirely serious experience, either.
But it does bring to the table some things few other projects, serious or comical, have. First off, there is tons of variety; each map is truly a different experience from the last. Some of them are actually decent in design, albeit a bit offsetting. Others, like Nazi Prison, are so ludicrously ridiculous and yet so lovingly crafted you have to wonder in awe at how they were created.
***Note: Spoliers ahead in the next few paragraphs!***
The first few episodes of maps were somewhat lacking, in my opinion, not to say that they were bad, but perhaps not bad enough. When it came to certain mappers, they always brought interesting things to the table. Xaser, for example, probably made the zaniest set of maps, especially the "Mst3k pants-a-thon Cyberdemon toilet party" (my description, not his).
My contributions to the wad ("liebrary", "simply dead", and "house of fury") are a mixed bag. Liebrary happens to be one of my earliest attempts at mapping, and therefore suffers some poor map design and texturing. But besides that, it has nothing special about it. Simply dead, I'll admit, was just an experiment in scripting techniques, and isn't too interesting, either, until you make it to the fire spewing dogs. But boy, House of Fury sure got a negative review from one person in particular! (Jimmy91's playthrough of Wooo.wad is awesome, by the way. If you haven't seen it, check it out.)
All in all, the variety of the set is astounding. My personal favorite of the maps has to be Nazi Prison (over 700 secrets and the most insane design and music ever, it truly is a piece of art). I'd recommend Wooo.wad to anyone wanting a so bad-it's good experience. Trust me, there are surprises around every corner of this mapset. Maybe not so much so with two of the three maps I contributed, but with all of the other maps, you'll be guaranteed to have a rewarding time. (Just note there is a lewd joke or two in some of the maps, but not anything too terrible that I remember.)