We had a great stay in february. It can be a bit chilly at night but a heater was provided for the bedroom, which helped a lot. The appartment has a gorgeous view and offers a lot of day to day equipment. You can walk to the beach in only a few minutes. Restaurants and supermarkets are also easily in walking distance. Even in february many of them were open and we did not feel like we missed out on something.
On arrival we were given some useful tips about Soller and the port. We also were given the directions to the flat, which were very helpful. Do not try to navigate only via e.g. Google Maps, use the directions.
All in all we can recommend the flat and Port de Soller in general.