We have used Booking.com on many occasions. We travelled to over 35 countries and we are pretty fair in our reviews as we're an elderly couple. I am also a very senior contributor for Trip Advisor.
We stayed in Hotel Sentral in KL Malaysia about a week ago. Prior to that we had a fantastic 12 days in Subang Jaya ( 4 nights at Grand Dorsett), 4 nights in White Lodge Langkawi, 4 nights in Noordin Mews Penang. We only picked Hotel Sentral because of it's proximity to K
L Sentral. After the first night my wife was bitten by something and she was breaking out in rashes. I went to a Chemist nearby and explained the symptoms and he got me the medication from 1 spot in the front of the counter for bed bug bites. The location of the hotel is good and so are the staff. Breakfast was also OK but who would like to be bitten by bed bugs while on holiday. My wife wrote an honest review but Booking.com did not publish it. Even the Hotel Management apologized to my wife but not Booking.com. I would advise people to desert them in droves. They are dishonest. I read a review on Agoda where a customer complained about the same problem and got a refund. I would strongly recommend people who are travelling not to use Booking.com and also Sentral Hotel. After 10 days my wife has still not recovered.