The digital computer on the Apollo spacecraft (virtually identical units in the CM and the LM) used a keypad input and numeric display output which was not very intuitive to use, although the intensive training the crews underwent probably helped it feel relatively natural. In theory, the crew could designate a landing point, and the computer could use the ship's radar to watch the surface and land in a completely automatic mode.
However, the LM also had joystick controls and windows, and in practice, for each of the Apollo landings, at around 500 feet altitude the commander switched the computer into a semi-automatic mode called P66 attitude hold. In this mode the commander could adjust the rate of descent by 1 foot-per-second at a time, and adjust the attitude (orientation) of the lander via joystick -- turning it slightly toward any direction would cause it to accelerate in that direction.
The LM didn't have a good view directly downward, however, so P66 required coordination between the commander (looking out the window and flying the ship) and the LM pilot (looking at the computer displays). If you read the transcripts of Apollo 11 around the 04 06 43 11 timestamp, you'll see the LMP (Aldrin) calling out altitude and speed figures, while Armstrong is steering around, looking for a good flat spot to put down.
It was absolutely a challenging and scary process, as evidenced by Armstrong's heart rate at the time, but the crews had practiced it, and managed 6 out of 6 safe landings over the course of the Apollo program.