I stayed at the Hotel La Fontaine for a few nights, would generally agree with the other reviews, although think the hotel and staff deserve a few more stars.
My room was great, very large with a lovely balcony, good wifi signal and breakfast was ok, not a huge choice, but they have an espresso maker, which is the important thing.
Yes, it was empty, but that meant it was very quiet. Staff spoke good English and I found them to be nice and polite and happy to help.
The location is quite remote and Esmoriz isn't a tourist hotspot, but I stayed there to explore the area and for this, it was perfect. 20 min walk to the train station (or €5 for a taxi) and your anywhere along the coast in no time. Esmoriz beach is another 15mins from the train station and it's quite nice. You can hire bikes from reception if you don't want to walk, good cycle paths.
Overall, I would recommend this hotel, especially considering the price, value for money is outstanding.