It's well located in the center of Lisbon, a walking distance to anything you can think of.
They have a laundry room with washing and drying machines but the day I was there the drying machines had a problem and were not drying. Hopefully by the time you read this the problem is solved.
The staff is nice. Sometimes they get a bit busy and I struggled to locate the person I had been communicating with but managed to do it in the end.
The guests were also quiet, considering that the rooms are stacked next to each other on each section of the floor.
It's a bit pricey compared to similar places I stayed in Split, Zagreb and Rio de Janeiro, being that it's a hostel with shared bathrooms, etc., but I guess those are Lisbon prices these days. Also the fact that the check-in is at 3pm and the check out at 11am was unusual for me.
Overall it was a decent experience for me.