Our family ranged from 15 months to 80, and the house worked great for us. Plenty of space to spread out, enjoy time in the pool, eat together around the table - with plenty of supplies for making meals easily, and take items for a day at the beach.
When we were at the home (end of June), it was a week of strong rip currents and rough ocean, so even though the beach access was 100 yards away, there really wasn’t a beach to go to - the waves were crashing against the wall the entire week with no chance of walking on the beach near the property, even at low tide. Not sure how it is at other times, but that was a bit sad - but obviously nothing the owners can control.
We did drive south a couple minutes to the public access for two days at the beach. The owners have provided several chairs, toys, beach towels, a wagon, and even some soft sided coolers that made going to the beach very easy.
Having the pool available was great for our group and used multiple times each day.
There was both a crib (in the master) and a pack and play (that just fits in the guest room closet).
It was just the family getaway we needed.