This is our first time in Porto. Location was great. Flat was huge. Each room has its own bathroom inside. This is very comfortable. We were in Porto at January. We were 5 adults and 3 children. Heating was important for us. 5 air condition heated the flat enough. Only the problem was, air conditions needed maintanence. Their filters were not clean enough. And except from living room window, we cannot open windows of rooms. Because there was a bad smell which looks like coming from restaurants around. Checkout is so strict at 11:00am. Cleaner lady came and responsible guy called us to leave flat at 11:15am. I hoped that some favor for families with children. My short view is, enough space for large groups and great location.
Regards