1) The silly video game, called GUI or desktop or Finder
2) You needed a morse key, called mouse, plus a third hand to use it
3) You could not do anything with it because there was no command line
4) The screen was too small
5) The screen was only black-and-white (Apple II had color)
6) The screen was built into the system case
7) There were no expansion slots (Apple II had 8)
8) The floppy disc drive lacked an eject button
9) Connecting a printer was only possible at the serial port, with an incompatible connector.
10) The OS was more primitive than MS-DOS
11) There was no BASIC or other programming language shipped with the system.
12) Software? You could buy MS Word and Excel (on later models).
13) It was twice as expensive as an equivalent Atari ST or Commodore Amiga.
The good news:
A) Few people mourned the lack of an audio-cassette drive
B) It had a real CISC processor
C) It had more RAM than the PC
D) Successor models came with SCSI discs.
E) AppleTalk was more advanced than the COM: ports of the PC
F) It was as cheap as the original IBM PC had been in 1981.