Have fun building one of those on a planet with an atmospheric pressure about 90 times that of Earth and average surface temps of 464°C. Either will ruin your day something fierce. But there is one place on Venus where humans could survive relatively comfortably: in the clouds. At a height of 50-55km temperatures drop to 75-27°C and pressure reduces to 1.066-0.531 atmospheres. Not ideal, but honestly much better than what either the Moon or Mars have on offer. Venus' troposhere is mostly carbon dioxide, which is denser than breathable air, so you could feasibly build giant balloons filled that would naturally come to float at that survivable height. Basically, Columbia from Bioshock Infinite.Point one: Venus has the enormous advantage of an atmosphere and active geology. Sure, that atmosphere is corrosive and actively hostile, but that's easier to deal with than the wisps around Mars or hard vacuum on the Moon. We're nowhere near the requisite tech level yet, but basically what Venus needs is...remember in Aliens, the Xenomorphs nested in the bottom of a giant atmosphere reprocessor on LV-426? That
You still can't breathe the air, and the clouds would also be made up of sulfuric acid, and you'd also have to contend with wind speeds up to 340km/h. But the cloud tops of Venus do have several advantages. Similar gravity and atmospheric pressure. Survivable temperatures. Availability of vital elements like carbon, nitrogen, oxygen, hydrogen and sulfur. While Venus does not have a geologically induced magnetic field to shield from solar radiation, its upper atmosphere can provide about the same level of protection. It's the most Earth-like environment known in the entire solar system. Also, Venus' orbit brings it closer to Earth than Mars', and more frequently, so more launch opportunities and shorter trips.
Not that colonizing Venus' clouds wouldn't be rife with problems. Just that the list of problems to solve is comparatively shorter compared to the alternatives.