Stayed for ~month. Pros and cons. First, the pros: Great location, excellent communication with host, good value, amazing balcony. Rui, the owner, is really easy to get ahold of and was very attentive to the many issues we experienced (below).
Cons: There were many. Might have just been a perfect storm of inconveniences but internet provider was having trouble with neighborhood the first two weeks and internet went out every 20 minutes. Cleaning was no good - floors were caked with dirt and the pillows smelled. It’s run by a property management company - The Porto Concierge - which wasn’t much of management. First, in order to check in, you have to go to a bar downtown to pick up the keys (no at-unit check-in). Then, they nickel and dime you for everything. There were two of us so we requested extra bedding for the couch, which cost €20 for a sheet and pillow case and €16 in taxes. And €20 for a second key. Dumb. On the final night, the roof flooded the kitchen after a heavy rain.