Like many games in Athens, Lethal Decision 2 is a cold start game - from the moment of walking in the building, everything's in character. This includes the very dimly lit entrance and stairs (bring a flashlight), as well as the GM's intro.
Many rooms in Athens are very loud, and I came prepared with earplugs. Despite that, it was still too much for me and I had to reluctantly give up partway through because I was worried about hearing damage. None of the other rooms I played in Athens came anywhere near the level of audio discomfort in Lethal Decision 2. There's no manual emergency exit, and I was unable to get the GM's attention for a long time. Even after I did, there was a misunderstanding about what he was going to do: the GM was going to turn down the music to 10%, and I kept waiting for this to happen, but he had already done it and I just couldn't tell the difference because it was still way too loud. I was then unable to get his attention again for an entire puzzle, after which I finally got out of the game. To his credit, after I left the game, the GM checked in on my and was nice and apologetic.
Another thing that needs to be called out: Our travel group was large enough for two teams. There's a point in the game (which I quit before getting to) that friends had warned us about beforehand as having a slightly dangerous drop (a couple feet, and vision would be obscured due to heavy fog). Despite this warning, someone on the other team fell and sprained(?) his wrist at that exact spot. My understanding is other people had gotten injured there before, and that it shouldn't be hard to fix (add a railing, or stairs, or don't make it foggy...) but the owners don't seem to think it's a problem.
This is one of the few rooms I've played that I would actively warn people to avoid. Not because of the quality of the set (it's large and interesting) or the puzzles (which are fine) or the actor (who was also fine), but because of safety: both my experience and that of friends.
Set was appropriately spooky and impressively large.
Particularly interesting or different
Yes
Physically active
Somewhat
Accessibility
There are a number of places where players have to climb or descend. The first few rooms (at least) are dimly lit and players are expected to be able to make out important puzzle details - I wish I brought a flashlight because it was past the point of being fun.