It's amazing if you're into Pascal. You don't really need anything else. But other languages advanced further these days.
That aside, one thing that I like about FP is their text-mode IDE. They basically copied Borland's original Turbo Pascal (circa 7.0) IDE for DOS. Except this one runs on Linux etc. And, of course, has a lot more features. There's something about that TUI goodness that is hard to capture in modern GUI IDEs - and then it's also blazing fast (you think Sublime is fast? ha).
It compiles to just about any platform you can come up with.
You can build a GUI app for any platform and backend without having to change a lot of code.
Builds to Linux, ARM/x86/x64, macOS, iOS, android, Windows, freeBSD and I'm sure I'm missing a few.
It actualy surpassed Delphi in some ways. You can develop native programs on non x86 platforms. The IDE and compiler installs and runs fine on the Raspberry/Nano/Orange PI boards, and others, so if you want to write a GUI to view sensors and actuators status, or maybe a display for a homemade KSP controller, the tools are there already. Free both as in beer and speech.
