Wow, it looks good. I might use this next time I'm looking for a hotel. I would love this as an addon in Chrome, so I can use it while browsing hotels. Unfortunately, most of my trips lately have been to Russia, and you don't cover those.

One nit pick, the 'staff' filter seems to cut sentences in half, usually ending in the word 'staff'. The actual comments about the staff seem to follow the word 'staff' in the reviews, thus it failed on the few reviews that I looked at. Still, there were over 400 reviews for the particular hotel that I looked at, so it may have worked better in other reviews.

I'd also be curious if it gave more weight to more recent reviews. Staff can change quite a bit in two years.