It was awesome/unbelievable/fantastic/amazing (pick your adjective)! Basically, I loved it. Buy it, put it on your shelf and read it again and again!
I liked it! I'll probably buy it. It was a good book. I might read it again.
It was ok. I won't buy it and I won't read it again. It was good enough to read once. If there is a sequel, not sure I'll read it.
I didn't like it. I read the whole book, but it felt like work and I got no enjoyment from it. I will be deleting/donating my copy of the book. Won't read any sequels.
I hated it. Or I didn't finish it. I will never allow the book to darken my doorstep again. Please don't write a sequel.