I would say yes, for the most part. The general searches I do (I search mainly for documents by title or author or publisher) - by publisher, I'm getting great results in general. Sometimes I have to drop a set of connections to get more than 50 results, but I've gotten some sets of 100+.

On the author or title searches, I get more modest results - between 0-20 generally, and again, that's occasionally with dropping a set of connections or so. But to be fair, at this point in my collecting, some of the authors, etc. I'm searching for are more obscure. And those, I consistently get 0-2 or 3, some of what I expect, some I think I ought to be getting more of.

But overall, my searching has most definitely improved.