Graça Cozy is in a great location. It's tucked away and very quiet... a big bonus as it's in a fairly touristy area. Happily I could get anything I needed within a few blocks, great food, pastries etc. I slept well even though I could sometimes feel the springs in the mattress. I loved the skylight over the bed. The shower, while small, was a pleasure. It is a stylish place and was perfect for my needs.
Considerations for other travelers... I'm a bit under 6 feet tall, when I stood in front the bathroom mirror I couldn't see anything higher than my shoulders so I'd need to shorten myself to see my face for shaving etc. This is because the ceiling on that end of the bathroom slopes down and the exposed beams do too. If you're not paying attention you could bop your head. I tapped mine a couple times... it'll happen. Still, it wasn't a real issue - I wasn't in Lisbon to look at myself. Also, if you have heart issues, the stairs might be a problem... but once you've done them for a while your heart, and legs, will be stronger.