These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Informed Deformity: David's scars don't really seem bad enough to force him to wear a mask or to cause Sam's terrified reaction.
Squick: Items that David brings into his isolation tank include Laura's swimsuit. One can only imagine what else he is bringing in there, or what other memories he is trying to relive. Or how often he cycles the water in that thing.
Wangst: You're hit with a case of this hard in David's first chapter, where every hotspot causes him to mourn his deceased wife and you quickly learn she's his been his one and only focus for the past three years. Of course, it later turns out that Laura really is haunting him. But in a good way.