Well, Python is my main programming language, so things being made with it gives me a feeling that I can understand and control them. Sometimes this feeling is even right, for example with Qtile, which is also configured with Python.
Xonsh. For basic use (running CLI programs with arguments) it works like any other shell, and for other uses it has nice Python syntax (and libraries!). For example, I like not needing a separate calculator program, as I can do maths directly in the shell with an intuitive syntax.
I like Terminator for its mouse-controlled multiplexing. I also like the fact that it's made with Python, although I haven't utilized this fact in practice.
Have they redesigned the Lego skeleton arms? I remember them being different.