Why are you trying to clear a 15th level dungeon with a first level spell? Is literally everyone here autistic? Grease and Magic Missile? Do you drive your car three miles per hour?
As for loot how’s that Perception? I haven’t gotten there yet so we’ll see. Usually when I hear no loot I get somewhere and it’s overflowing.
Yeah, how dare I use spells efficiently instead of blowing 6th and 7th level spells into literal cannon fodder, when a second level spell works just as effectively. The annoyance comes with enemies that have absurdly high AC/HP with no downside other than shitty reflex saves, which essentially just boils down to fights taking fairly long (mind you, playing on Hard). So far every dungeon, while being thoroughly challenging even with somewhat optimized builds, was never a big slog. This was one I quickly got bored with. The aesthetics/theme of the dungeon don't fit the general narrative at all, enemy variation is pretty much nonexistant, casters are just there to fatigue you, and while I could've blown higher level spells to get through it faster, I also wouldve had to rest - and I'm trying to be conservative with those as I don't know how many of them I'll actually need, or how big dungeon will be.
When most enemies need 3-4 exsanguinates or bolstered Fireballs to kill, while posing no threat whatsoever (their ABs are dogshit, they barely hit my Camellia with her 46 AC), that's just boring design. Putting a few 50-56 AC sponges in your way that cant even hit a single attack, with Regeneration 10 or higher, and needing 10+ Coup de Grace casts to kill due to excessively high fortitude saves, is the definition of boring. Too bad their regeneration can only be stopped with electricity or adamantine weapons. While not having access to the latter, and half the mobs being straight up immune to the former. Just wasting time.
Loot isn't an issue of Perception, as most interesting loot isn't hidden behind perception checks. Regardless, I doubt I missed anything with 40+ Perception. I say shit loot whenever I meet interesting boss fights or tough as nails enemies, and they then drop shit like a Chainmail Shirt +1 or even non-enhanced weapons/armor. Which is Blackwater, in a nutshell. Unless you think its interesting design that you need to dimension door through doors you cannot open otherwise (unless you take the Evil option) for the only loot thats worth getting in there.