5 stars loved it and will seek out others by the author.

4 stars loved it but not enough to seek out the author. But, I'd read another of their books if it landed in my path.

3 it was OK. But, I probably would not read another by the author.

2 my most rarely used rating. Meh.

1. I'm pissed that I even finished this book. I feel slighted. Or, I didn't finish because the poor writing pissed me off.

If I just can't get into a book I don't rate it. I've had more than one book criss my path a second time and turn into a 5. Sometimes it's just a mateer of timing.