Lotus 1-2-3

Because of a native Linux-port (done by Tavis Ormandy) of Lotus 1-2-3, that I found, I came back to the good old spreadsheet software, as it should be.

Honestly, which features from today's Excel do you miss in Lotus 1-2-3? Graphical user interfaces are highly overrated! ;)

You'll still find a lot of resources about Lotus 1-2-3. Even a rather recent CVE?