They only took Visa. But I guess it's like that everywhere. Make sure to withdraw some money before if you have other credit cards.
Also the breakfast was very basic, I would suggest you go somewhere else and not pay the breakfast fee of something like 3$ . There are many great cafés and restaurants walking distance ! Karma Café /Don Amazon for example.
It was near everything, very central to Iquitos. Rooms were really clean. I love how the hotel is made, it's like this beautiful maze, and there's a lot of light from the sun , lots of open spaces. There's also beautiful psychedelic paintings to sell on the walls . I would have stayed longer at this hotel if I had known before how nice it was. The staff is very friendly , many were english so it was good for me. They know many of the good spots around and can guide you to them. Some people don't know this, but they can also give you a free entrance to a pool , except it is not at the hotel, it's something like 10minutes away . If you need a guide to go to Monkey Island & Butterfly far, you can ask them for Freddy. He speaks english as well , and we had a blast doing those activites!