I'm really dubitative about this level…
The two comments bellow me explain pretty well the problem. In a hand the map is just frustrating at best, in the other the concept is cool and would just had needed a little bit more polish so you can understand what's happening on the level.
I didn't even finished the map to be honest, not my taste at all. A map should always be first try-able, if it is not you failed.
Not bad at all in fact… But as expected with such old maps, the navigation is quite a pain because of questionnable texture/design choices. Myself don't have a great patience when it come to find my way out, it rather spoil the rest for me, what a shame :/
Behind the expectable "messy" 1994ish layout hide a bunch of maps with a soul, you know, this kind of map without any theme, that have been drawn by an amateur that just love Doom.
3/5, not much because of the frustration it can provide, not less because of the nostalgia.