It turns out that I don’t hate the UI as much as I thought I would, though I still prefer that of both Google Docs (and, to a lesser degree, LibreOffice) by a considerable amount. The suite is still in its infancy, you can tell, but it also feels incredibly smooth, fluid — it’s built with new technology, you can tell.
What really excites me about Calligra is its modularity — it’s coded in such a way as to keep the UI as separate from the backend as possible, uses Flake as a library for objects, which means that objects should look and behave the same in every module of the suite, and these things make it much easier to develop new modules for the suite, to port the suite to other devices, and to create custom UIs for these devices.
Boudewijn Rempt describes it in depth in this video:
Too bad Calligra doesn’t have a design team…
P. S. I’ll be happy if you use/tweak/share/spread the calligram above — get the source code at this link. CreativeCommons Zero, as always, though be aware that the trademark law for Calligra still applies.