We stayed several nights in early January. We were the only ones there, and were put in a unit far from the ocean front, which seemed a bit odd, as on ocean view would have been nice. They supplied one small heater for the apartment, and finally brought another - but it was never enough. It was very cold all the time. The power kept going off too, so we had to run down to reset it. The shower heater unit was set to 2 minutes, so we all ended up in freezing cold showers after just getting warm in the shower.
For a winter visit - I would not recommend it if you want a comfortable warm and cozy stay.