Such a cute place! If you are not able bodied or have a lot of luggage, the stairs are not for you. In the Alfama district in general, stairs are tricky and frequent, but in Irina’s Trendy House you have to ascend a narrow set of stairs to access the apartment. There is only about 10cm of clearance per step so keep that in mind as they can be tricky. The apartment itself was very spacious for my two friends and I. The couch folds down into a futon style bed and Irina provided extra linens. We had a great time as it’s close to both the 728 bus and 28E tram. We did hear our neighbors one night but beyond that, the place is really quiet and depends on who is staying in the adjoining apartments. Highly recommend for your stay in Lisbon!