Part of me doesn't want to say how good a place it is because maybe it will be impossible to return to due to high demand!
However, fair is fair! Easy to access on day 1, very clear instructions. Decor and layout are very well thought out. I found the sofas/seats really comfortable to relax on. Beds were incredibly comfortable! A/C worked well. Great bathroom ,loved the shower.
Location is excellent. Hard to better it, and I have stayed in most areas of Lisbon. Great buzz of the city with windows open, but a quiet, respectful building at night with the windows closed. The public areas of the building - lift and stairs - are spotless.
I'd definitely stay here again if it's available on my dates.