Picture this: you are playing a community project megawad and are still within the first ten levels. Some of the levels you have already played are fun but then you arrive here. Nothing bad or good and is over before you know it. The perfect level between two good levels in a megawad.
Vanillic Acid is not part of a megawad or even a level set but exhibits all of the characteristics of a filler level. It has all the base characteristics of a Doom level and fails to do anything interesting with it. This level isn't bad but in the ocean of idgames why bother taking the time to play this one?
Very worthwhile map, starts out pretty tough, then becomes more manageable, but always challenging enough. Plenty of chaingunners, Barons, Revenants etc, but the big two are absent. All it really needs is a bit more of a 'big bang' ending.