I'll bet plugin developers hardly ever get
good news...
I'd just like to say that this morning I installed (for the very first time ever) several Calibre plugins without any trouble whatsoever. They installed cleanly, they ran as expected and... well, I'm absolutely delighted. (Can't say that about the software upgrade I was running this afternoon at work -- so we won't go there.)
Thank-you Calibre Team, I'm deeply impressed. Well done.