I wanted this pen for a while and decided to treat myself to it. Its arrival experienced some delay (apparently, we have postal strikes) but it did arrive safe and sound eventually.
And it looks absolutely stunning in real life. The photos don't capture the shiny of the flowers very well, and it looks much better in daylight than it does in artificial light. I bought it for the pretty-factor, and much to my delight, it also writes well. I wrote several letters with it so far, and yes, after four pages my hand will hurt, but normally I don't even last four pages.
Some more photos of it, and its writing: