Minus 5 stars if could!
Booked a hotel in Singapore for my guest from Japan and even emailed them that he will be checking in after 7pm and they replied promptly. However, when my guest arrived at the hotel, the hotel does not have any record of my guest despite already paid for for the room. The hotel staff then have to try very hard to contact the Zen people and then was given a choice to stay at another hotel which my guest accepted. After 5mins, an email came and said that the alternative hotel was also full! Then they emailed and offered 2 shady hotel smacked right in the middle of the red light district which my guest have really no choice but to accept it. This would be my first and last experience with such amateur booking site trying to act like Uber or something. Thumbs down.