Ok for an airbnb at its price. We had a disappointing check-in experience as the room was not clean upon arrival from previous guests and the communication to organise fresh sheets etc was not very clear. Another thing to note is that to collect the key you have to go all the way across the city (35 minute walk each way) to get it from a lockbox, or they charge $10 for someone to bring it to you, which is a bit outrageous and seems a cash-grab. Directions for check-in could be a lot clearer, so make sure to clarify or get pictures if you are hauling a lot of luggage. The company also tries to get you to use an external website for communication and check-in information, which goes against airbnb protective policies, so be aware.
The location is good for accessing the lower south part of the river, and doesn't take long to get there at all and hop across on a boat or walk on the bridge (15–30 minutes depending on what you decide), and this means the neighbourhood is quiet so we slept very well. Two bathrooms are very convenient, and the kitchen space — although surface space is limited — was enough to make a meal or two if you like to cook. As many others have said, the view of the river is not so true but the area is charming and you're very close to the front (with adorable cats). Perto do Cais restaurant close by is great!