(CNN) — It happens to many travelers.
You're going through online hotel reviews and getting mixed signals about a place.
One reviewer says they were dissatisfied with the property.
The next heaps praise on it.
Though usually it comes down to personal preferences and experiences, according to new research from hotel booking site Agoda.com, your nationality might have some impact on how favorably you rate a hotel.
Agoda.com says it analyzed over 7 million reviews by travelers from around the world to see which nationalities tended to rate hotels higher or lower than the global average.
The way the site works is that travelers can submit reviews for hotels after every stay by scoring them on a scale of 0 to 10 in six categories.
A hotel's review score is an average of those numbers.
So which nationalities are stingiest with their praise?
The average review scores from UAE travelers were found to be .32 points lower than the global average of 8.52 out of 10.
On the opposite end of the spectrum, Russian travelers have been ranked the most generous hotel reviewers, with their scores found to be .56 points higher than the global average.
"Travelers from different countries tend to have different review rating standards depending on their travel patterns, spending power, and just general likes and dislikes," says John Brown, chief operating officer of Agoda.com.
Japanese and Omani travelers follow close behind the UAE in terms of dissatisfaction, while Egyptians and Irish are generally more satisfied with their hotels, ranking not far behind Russia, says Agoda.com.
Here are the world's top 10 most generous and most demanding reviewers, according to Agoda.com's research.