Docking maneuvers and longer EVAs were part of later flights, all intended to gear the US astronauts up for landing on the moon. It's fairly well detailed, fairly accurate, and big. It has been reissued many times over the years. Inside the box are nearly sixty grey styrene parts, plus four clear ones for the windows. Molding is crisp, despite the age of the molds.
Detail consists mainly of raised lines, which is accurate for the exterior ribbing at least.
Well, yes and no. Most of the equipment and systems carried by the flight vehicles are present on the model, though not all. The paint guide, which consists of call-outs interspersed with each construction step, is similiarly accurate. In other words, it faithfully duplicates the colors of the mock-up, which were brighter and had more contrast than the flight vehicles carried. Note that the flight vehicles carried a gold shroud to protect the equipment in the Adapter Section - if you replicate that, you won't see any of the equipment back there and it won't matter if it's painted.