Solid build quality with polished visuals, though there's little to latch onto in terms of unique architecture or theming. The combat has some nice surprises, which are sometimes curtailed by cautious play, but generally the setups are engaging either way. Spaces are often cramped, which is aggravated by the total lack of armour on hard. I appreciated the presence of all weapons and how they're distributed, and enjoyed the secrets.
The main thing to improve is the layout. I really liked some of the individual areas, which keep the player moving and make for interesting moment-to-moment choices, but these are strung into a very linear sequence that doesn't make for the same kind of satisfying gameplay structure as the id maps.
Really solid first map, looking forward to more building on these already impressive skills!