HIGH Wonderful art style & environment.
LOW Game feels too easy at points.
WTF I didn't realize so many people in the 50s kept audio diaries and left them laying around in random boxes, air vents, and dead bodies.
Alfred Hitchcock once said, "There is no terror in a bang, only in the anticipation of it." I've always enjoyed the sensation of my heart beating a little faster more than having the daylights scared out of me. As a player, I become much more engaged by a crescendo of tension rather than a sudden "HOLY CRAP" moment, although those can also be enjoyable. However, suspense is a difficult thing to effectively portray in any medium, sitting on a fine line between outright boredom and "OH SHI-." Walking that line is a difficult task, but fortunately for us BioShock handles it quite deftly. Is it gaming perfection? No. Is it a thoroughly enjoyable experience? Absolutely.
The aesthetics of BioShock are nothing short of superb. The player is thrown into the world of Rapture, a massive undersea city that has been ruined by unchecked genetic modification and greed. Rapture is a truly terrible place; most of its citizens have succumbed to raving mania, and the ones that haven't are locked in a deadly power struggle (insert mandatory joke about the U.S. Congress here). From the moment I set foot in Rapture everything around me was screaming "dystopia"—not literally of course, but there are quite a few screams to be heard. The dimly lit and decrepit port where I entered the city was complete with crumbling pillars, burning chunks of the floor, and a few crazies walking around. This is just a taste of the visual treat that is BioShock—the surgical wing, the night club, and the creepiest farmer's market ever all awaited me. The Sixth Sense-esque "ghost" sequences are another great part of Rapture's décor, showing a few backstory elements through spectral visages triggered by going through a specific area. The only downside is that there aren't enough of them. I really wish these had been used more in addition to the audio diaries, as they were great for setting an area's mood. The soundscapes also do an excellent job of capturing the essence of anarchy in Rapture, from the frantic ramblings of the remaining citizens to the heavy groans of the Big Daddies (the big mechanical creatures on the box cover) to the faint sounds of the city walls succumbing to the water pressure. The sights and sounds of the game make Rapture a masterfully steampunkified setting for the game's narrative.
I usually find that the best game stories are those that will constantly prod the player, compelling him to continue onward in a game he otherwise would have no interest in. The excellent writing of BioShock accomplishes this task with flying colors, as the game leans on its story to keep the player engaged from start to finish. There was never any point that I became disinterested or bored, as plot points developed at frequent enough intervals to keep me intrigued. Plot and character development is accomplished in large part through a series of audio diaries the player finds in seemingly random places, along with radio messages and the ghost encounters mentioned earlier. I actually found myself looking forward to receiving new diaries/messages, even stopping to listen to them in some instances. Another interesting aspect is that with all the diaries and radio messages there was very little face-to-face interaction with non-player characters, but this did not hamper things in the slightest, as I sympathized with the characters I was supposed to sympathize with, loathed the ones I was supposed to loathe, and was able to follow every plot detail. To discuss any specifics would be an injustice, so I'll just say that the BioShock story is extremely good, and a treat (or an insult depending on how you think it was interpreted) for any Ayn Rand fans that might happen to come across it.

While it has some minor flaws here and there, BioShock's biggest selling point is style, and it does not disappoint. Revolutionary? No. Solid title that was worth my time? You bet. Using sentence fragments to illustrate a contrast between viewpoints? Oh hell yes.
Disclosures: This game was obtained via Steam download and reviewed on the PC. Approximately 15 hours of play was devoted to completing the game once.
Parents: According to the ESRB, this game contains Sexual Themes, Strong Language, Blood and Gore, Drug Reference, Intense Violence. There is a lot here that I wouldn't want to expose a child to, especially the more startling moments. I could easily see a 6-year-old getting nightmares from a game like this.
Deaf & Hard of Hearing: All of the game's dialog is subtitled and most of it can be reviewed at leisure, but ambient sounds and music do play a large role in the overall experience.