I just tried it in 2.80 and 2.81 beta.
I can generate a nice, uniform row of books, but as soon as I change any parameters (except the number of books), it crashes Blender completely.
It’s a pity, because the generated books are a nice shape, and it would save me a lot of time. (A client needs an image of a school library)
[some time later]
Just tried it again. I managed to get a row of books with variations in all dimensions and several different colours. Then when I changed one more setting, it crashed again.
Next time I tried, it wouldn’t even create the basic one book without crashing Blender.
I had to reinstall it to get it to work again, and then it wouldn’t let me adjust the number of books.
The next time, it let me change several parameters before crashing.
BTW, I’m using Windows 10 and have 24Gb RAM. I’m adding the books to a new scene, so memory is not an issue.
[Some time later…]
I found that I can now create rows and stacks of books, but I have to tread carefully.
It crashes most often when clicking the arrow buttons to change the parameters. About 98% of the time it’s ok if I type the values in, but almost always crashes when using the arrow buttons.