As it's been said before, a pretty damn ez wad. Even on pistol-start, it's not that challenging, and it's a great wad for beginners. I liked the environment of some of the levels, and the midi pack that accompanies this slaps. Give this a try, won't take you longer than 5 hours to complete it.
It's very fresh and new. But, in the long run, becomes a bit bland after the first few plays. I have doubt that there is some excellent levels in this, and the boss battles are very cool, but it does not have much replay value. 4/5.