Went for the ABIM with my roommate. I was initially concerned about parking, but about a block away (by the firehouse and the cyber center) there’s a big parking structure.
First off, extremely helpful and kind staff. While the testing room itself wasn’t 100% soundproof, it was effective and perfectly comfortable; no need to worry about not being able to bring a sweater. It’s great that the building is right on the riverwalk; during my scheduled breaks it was lovely and relaxing to sit along the river.
No one likes to take a standardized exam, but if you have to take it - you want to take it here.