My family rented this place after it was remodeled and we were the first occupants. We stayed for a full month because I temporarily worked in the area, and we have visitors coming over from abroad. We occupied the place with 4 adults and three toddlers. It is very spacious and comes with 2 parking spots in the garage and two additional parking permits. The property has three luxurious bedrooms with two full bath rooms upstairs and a living room, dining room, large kitchen and 1/2 bath downstairs. The master bedroom is huge, absolutely huge and includes a full bathroom and balcony. The second bedroom has a door directly into the second bath so it can be used as a "private" bathroom as well (which is what we did). The third bedroom is a little bit smaller but has a door to the patio. The roof has another sitting area where one can enjoy the ocean view and sunset. The beach is across the street, and the little park / pier is just a 10 minute walk.
Everything is new, clean, freshly painted and well taken care of. The beds are of high quality, similar to the beds that you'll find in a Sheraton. The kitches is large and has everything you need to cook. Large fridge + freezer, plenty of storage.
Then there is a little note regarding the agents. When we rented the place, we basically rented it unseen, as it was still being remodeled. When the time came to move in, it became apparent that the owner forgot to insure the place. The agent went above and beyond the call of duty, stepped into the car and took care of that on the spot, and within the hour he arranged insurance at a local insurance agent. Very impressive.
The one and only downside, which you'll find anywhere in Oceanside: I don't know which bright light did the planning in that city, but having a chook-chook-train 250ft from the beach is not a very smart thing, especially when it honks until 1am.
It is very close to the I-5 and CA-78. San Diego is about 30 minutes away, Legoland/Palomar airport 10, and Disneyland about 55 minutes, all by car
All in all, absolutely highly recommended for a family or large group.