It is easy to book a room and manage all bookings.
ホテルズドットコム - 国内・海外のホテルをお得に予約
very poor service
I used agoda to book a trip in China because it gave lower price than others. I gave information of my credit card when I booked hotel. It sent confirm mail to me immediately. BUT! They cancelled my booking without contacting me!! When I called them, they just said when they wanted to confirm my credit card (according to them, this e-mail was sent one month later than I booked), and I didn't relay. The situation is I didn't receive any e-mail from them and moreover I also didn't receive their cancellation mail! It's really risk to use agoda to schedule a trip, and I will never use it again.