A quick note about star ratings on this blog: they are entirely subjective, obviously, and not even necessarily internally consistent. However, the general guidelines are below.
Below one star: Trash.
One star: Filled with hatred.
Two stars: Indifferent.
Three stars: Good.
Four stars: Very good.
Five stars: Unicorns carrying gifts of Belgian chocolate and single-malt Scotch leapt out of a supernova when I read this.
Most importantly, when I give something a within-genre star rating and an overall star rating, no disrespect is meant to the genre in question. In fact, I may have higher genre standards in some cases. But I don't like comparing apples and oranges, and a solidly entertaining space opera probably shouldn't be judged on the same criteria as a solidly entertaining 19th century English mill-town drama.