It definitely does what it set out to do: provide an expansive overview of readings on Wuthering Heights for a high school age audience. You get a lot of different opinions and interpretations here, that often contradict each other. About half of the essays I disagreed with, but I think that's a good thing, especially for younger readers.
It also provides access to a lot of essays I probably wouldn't be able to read otherwise - scholarly journals aren't exactly easy to find if you're not active in that field, or if you don't have the money to pay for individual issues.
I will say some of it seems a bit dated - which is a weird thing to say when you're talking about a novel that's over a hundred years old anyway. But when you're approaching that novel through a modern lens (modern psychology, for example), it can actually make a difference. It doesn't invalidate anything, but it is something to keep in mind.