Manuel is an outstanding host: gives you all relevant information and more; makes everything easy for a successful stay; is very reactive when asked for a service.
The flat's localization is highly convenient if you want to be based downtown and have an easy access to all places to see and all transportation. It is well equipped and nicely designed. A lovely place for 4 people, especially with kids.
One big drawback: the flat is very, very noisy, even at night. Be prepared for it.
And it may be cold as well if it is not warm outside.