Very cool stuff, an interesting reinterpretation of an already heavily trodden map. Felt like a sequel to the dm2 remix map, and not just because this is another DMSP convert - there's certain quirks shared by both maps that give the whole affair a certain sense of continuity.
I guess what I'm saying is that our beloved Shambler has developed his own mapping style???
If I didn't know this was a Shambler map before playing, I'd have guessed it about thirty seconds in.
The progression made sense, even if the whole elevator thing was maybe more complicated than needed (instead of lots of buttons and centerprints, why not just keep them up and bring them down later?).
I got a good kick out of trying to make the YA jump and failing, since that's what I always do in the source map.
Only found 3/8 secrets in the demo, more after post-coital hunting. Not entirely convinced if the mechanic employed is better than what Quake usually does - I pretty much found one of the secrets by accidentally hugging the right wall at the right time, but thumbs up for consistency and proper use of AD features.
Very enjoyable gameplay-wise, a marked improvement over your other maps - this one had a proper flow and fewer spawn-ins, and the actual spawn-ins still felt organic, as in their appearance actually made sense in that moment, and didn't feel like the mapper pretending to be a crafty Dungeon Master. Very good gamefeel
I rate this quite highly, gotta replay it in Qrack with the Qoetia mod though before I can make a proper judgement...