Awesome wad with awesome music and a fairly balanced difficulty curve. Maps have a very vanilla (with some exceptions) feel despite not being exactly that, which is a good thing in my book.
I can't recommend this megawad enough. It's an easy 10/10 to me.
One of the best wads I've ever played, has a great and memorable soundtrack while also having a nice and difficult (but satisfying) level design. To me a nice step up from the original and a way more balanced map pack overall.
Highly recommended to people who want a nice and difficult wad to play.