Gregory's Server
I tried just one test, which is always the most difficult.
The history of hotels, architecture of hotels, regulation of hotels, hotels slept in by famous people etc. etc. are impossible to probe using a search engine because the first 100,000 pages will try to sell a hotel room.
@lionelb
That, hopefully, is something that this will be better at than most engines once the index is broader, since it tries to focus on noncommercial, independent sites.