I had a queen room on the 4th floor. It was nice and clean, mostly quiet throughout my stay. I found the bed comfy. It says "shared" bathrooms on airbnb but they're shared in the sense that multiple people use them but only one person uses it at a time -- it's not like a public toilet / showers where there's multiple cubicles in one room.
The only bad experience I had was checking in due to the long, long wait time but it's a busy 8 floor hostel so I guess it's to be expected.
Every staff member I encountered was friendly and helpful though. My first keycard for my room didn't work so they switched it out and one time I locked myself out and they were understanding and helped with that too.
There is aircon on in your room 100% of the time because the windows don't open so it's a little jarring at first due to the noise but I got used to it fairly quickly. There's a thermostat to adjust the temp it just takes a few minutes to switch to the temp you set.
There's free WiFi which is okay for casual use but did cut out now and then so I had to switch to data for video conferencing. The room also contained a desk.
Overall I enjoyed my stay :)