I stayed there 3 nights at the beginning of January. I love the location: 150 m from Khaosan Road. The advantages without too much noise. I had a good price: 650 b with breakfast and illimited Wifi. The breakfast was small but OK, and the Wifi, even if limited to 512K and sometimes stopped, was acceptable. There is no lift, even for the third floor, but it’s acceptable with such a low price.
My room, number 302, was big enough, but with a smell of mouldy. When I started the A/C, the fan started, but no cold air. 10 mn after, I began to sneeze. The days after, I had a bad cold, and I had to buy some medecine. I guess the filters have never been cleaned. The A/C compressor wasn't working (green light never on), so the temperature was high. Some baby cockroaches were coming from behind the fridge from time to time. I asked at the front desk for another room, but it was difficult to be satisfied. After four times, and wait onsite at noon time, I managed to have another room which was OK, even if it was smaller (the sink was blocked, but quickly fixed when I requested).
My advice would be to go there only if you really don’t have enough money to pay for a 850 b room (there are a many hotels near), and negotiate with front desk in case of room problem.