I had a great time at Porto and the wine hostel. The hostel is really pretty, has everything one needs and is really clean. The staff is extremely friendly and kind! Even after I messed up my check-out they were the best!
In the evening it can be really loud, if your room is on the front side of the building, cause there are some restaurants. But that means the hostel is located perfectly! Everything is pretty near and you have great opportunities
to spend your time. I would recommend a stay at the wine hostel!