Maria apartment is a great place to stay in Porto. Everything is close (walking distance): main streat, subway, old town, Ponte Dom Luís I bridge, Torre dos Clerigos (view tower)...
In apartament you will find everything what you need: kitchen with a good equipment, tvs, air conditioning (every room), washing machine, towels... The apartment is a sparkling clean and very bright.
One think which you should notice: it is a 4th floor without lift (for older people will be very hard to get in).
I recomended:)