There were some very good aspects, others less good. The room was large, lovely bathroom and very comfortable bed. The staff were all very friendly and tried to be helpful.
A few things detracted from this. First was the pool, where some guests (the young adults rather than the young children!) were very loud and had no awareness that this was quite annoying. Also, the pool area was a little underwhelming - not all sunbeds had mattresses, they were worn in areas. The floor area around the pool could also have been cleaner. Secondly, the room was cleaned each day but on the first day the coffee mugs were not replaced, suggesting this was not done with very much attention to detail. Additionally, service in the bar was a bit haphazard - the staff there were doing their best but there were additional agency staff brought in and they were clearly not sufficiently experienced or trained. The spa was very nice but it seems odd that in a hotel of this size, someone has to be brought in for some treatments. Our 'view' was over the back of the hotel. It was very noisy from what I think were the aircon machines, and as a result the balcony wasn't a great place to sit. Lastly, there was a rooftop bar area which was one reason for me booking this hotel - but this was only available for private functions.
This sounds negative, but it is only intended to be constructive as many of these points would have easy fixes. Overall we enjoyed Porto and our stay, and would come back again.