Four of us stayed at Carinas place for a month in March-April. The house is situated in a beautiful little village near Ericeira. There are nice coffee places and restaurants just minutes walk from the house. There are also spectacular beaches nearby, that were almost empty in March-April. I can really recommend staying in Ribamar instead of Ericeira. At least we felt like it was more authentic and peaceful. You will need to rent a car tho.
The apartment had everything you needed and the beds were super comfortable. Only downside was that it was sometimes quite cold and damp inside, but I think that this is problem with a lot of Portugese houses. We were not too bothered by it, but you might want to pack some woolen socks with you ;)
Thank you Carina and we probably will come back another time :)