AAAhhhhh.... Alien Vendetta... What a mapset.
But on topic, I have pretty much enjoyed Plutonia 2. A good solid mapset, very enjoyable dooming to be had, lots of intense moments, I tend to remember battles much better than I remember entire levels. Though I did notice that when they were making Plutonia2, they must have made it a law that EVERY level had to have at least 47 Revenants on it. The mapset is crawling with revenants. Good thing I love killing revenants.
Possibly my favorite map so far is K!ra's map 15. Reminded me a lot of e4m2. Map 17 is great too. I can't distinguish one map from the next, I played through them all too quickly I think. The archie level stood out, tho as Jodwin said, it did seem to have a few filler archies.
There is only one big dislike I have so far, and that is the overuse (imo) of the 'block monster' tag. I mean, the number of times I would open a door, trigger a pile of monsters, and then retreat out the door, expecting then to relentlessly chase me, only to turn around and watch as they strolled uselessly back and forth against this invisible line. Block monster makes PE's and lost souls useless, and it reduced the intensity of many of too many of the fights. I would have rather seen a wider use of the "block sound" tag, to keep the monsters in their respective areas, until you trigger them, then let them chase you to hell and back. Don't stop monsters coming after you through doorways that they can clearly fit through. So often, I would start to get really 'into' the game, only to come crashing out of it when I saw monsters stuck like this.
Though I don't want to focus on the negatives. I have really enjoyed playing through it all the same. Some wonderful maps in there, definitely deserving of a big fat cacoward.
And on that note, I'm off to play some more. Still only up to map 20. 10 more levels of meaty goodness still before me.