We loved our stay in Porto at the Carlos Alberto suite. The location was great, just a 10-15 minute walk from the river front and close to many great sites, including a stunning church, the lions fountain and the famous bookstore. We stayed for 5 weeks and were pleasantly surprised that they provided cleaning services including fresh towels and linen each week. Having stayed in many airbnbs long term this is not usual and was a real treat! Tons of restaurants and cafes right outside your doorstep. The only thing I would mention is that the unit's location is quite popular at night where locals and tourists like to gather and socialize in the square. It can be a bit noisy at night because of this so if you're a light sleeper, you might want to consider this. That being said, the windows provided quite good sound proofing when they were closed. We'd definitely recommend this place to anyone visiting the beautiful city of Porto! Thank you Pedro and Nathan!