The most obvious change I have noticed is that they are far more aggressive about dropping terms from the query. I don't this has ever produced a useful result for me, I always have to go back to the search and add quotes around the dropped term.
...and the most irritating part is that it's almost always omitting the term that is most important because it's the one that reduces the number of results the most, under the (ridiculously flawed) assumption that more results are better; and in that case, why not go the whole hog and make everything "suggestion"-based? People are searching for what they want, and specifying terms to get that.
To make an analogy, it'd be like going into a pet shop, looking for a specific breed of dog, and the owner trying to convince you to buy cats instead. "But you were just looking for a pet, right? What's the difference?" A pretty idiotic situation.
