By all means rent this unit! So cozy and charming and right on the water. Although it sleeps 4, I'd suggest a max of 2 (I was flying solo, with my dog, fwiw).
I brought prepared foods, fresh & frozen, from Trader Joes and still used almost every appliance/amenity in the kitchen, so you're totally covered in that regard. Got take out twice from Neptune's Net; why eat there when I could bring it back to my little nest to enjoy?
At the time of my visit, there was no beach at the unit, just boulders and crashing waves. This did not bother me as being on the water was breathtaking. The deck met my needs for both privacy and sunbathing just fine. Sandy beach was 5 minutes walk but does require a little climbing down to access so wear tennis shoes.
Bring a lot of firewood; you will burn through it quickly and will want to make a fire in the morning as well as the evening.
The unit is not easy to find and cannot be seen from PCH. To improve upon the directions provided by the owners, I would suggest watching for these landmarks: Heading north on PCH, pass Neptune's Net. Get in left lane. On immediate left, where houses start, there is an old Cadillac with a car cover on it. Turn left into the driveway just past the trunk of the car. Pull down the driveway to the end and you have arrived! Also, the unit is directly across PCH from the giant menorah on the hill. Ya can't miss it! So, someday if they move the Cadi - likely never - the menorah should still be there! Enjoy!