When we booked hotels in Beijing with Ctrip, the Chinese and English sites did have different selection and price however there was some really good reasons.

We went with the Chinese site because it was cheaper but the room we got was BELOW ground and had NO windows. Not a single one. It was section of rooms that separated the laundry facility and the kitchen. All the rooms were for Chinese only.

We asked why and the desk said "Foreigners complain too much with the rooms downstairs!"

Really dark and did not have to worry about the sunlight filtering in the morning. Wouldn't ask for the room again though. It felt a tad claustrophobic.