Actualy FYI its been revised and its called Global search v2 
Comparing it with Newzleech the results and the interface look very similar the search speeds are also the same. the only advantage i found was being able to DL really big NZB files fast.
I agree with all the statements. The original Global Search was slow and clunky and made multi-part posts all separated so you may have to click 50 items to make a nzb.
Version 2 is much, much better, faster, and it does find some things that are not on other searches. It combines multipart posts making it easier to see and easier to get all parts.
I don't think it is any better than other searches, but it is at least on par with them now and is a good alternative.