It's been a few years (OK, six) since I visited Chicago Tattoo for my nose piercing, but I've gone to a few other piercing parlors for various jewelry adjustments and realized my Chicago Tattoo experience was noteworthy.
In selecting the exact location of the piercing, the artist (I wish I could remember his name, but I can't; he was bald and friendly if that helps) asked my preference and then let me know what he thought was best based on my features (which I agreed upon and which has lent me compliments from time to time). The artist also prepped me well: The sensation I was about to experience was accurately described and I left happy. The location was extremely clean, gloves were changed about as many times as you would expect in a hospital or similarly sterile setting, and the instruction on care was phenomenal. I never developed any keloids or any infections. The attention given to my piercing (especially the requirement that I get and wear a ring until the piercing healed--rings being easier to keep clean than studs or screws) was better than I've had elsewhere and that I've heard from others.
The piercings performed on myself and my friends who visited Chicago Tattoo are limited to nose and belly button (OK, so we're tame), so I can't comment on some of the more daring options available. I can say that one friend developed both keloids and infections from a previous belly-button piercing, but her Chicago Tattoo piercing stayed perfect--just like mine did.