The font looks blurry or pixelated. Solution: The fx-CG20 has a 216x384 pixel screen. When stretched to a 1080p monitor, it blurs. Look for a "Pixel Perfect" or "Integer Scaling" option in the View menu.
The fx-CG20 supports a robust BASIC interpreter. Typing long programs on the physical calculator is painful (left, down, left, down...). On the emulator, you can type the entire program using your computer's keyboard. You can even write code in Notepad and paste it into the Program Editor. Casio Fx-cg20 Emulator