My family and I just spent a week on Isle of Palms staying at Sea Sponge. The home is very well equipped, having everything we needed. The kitchen is well stocked, the beds comfortable, and the home was clean. The house is in a nice, quiet neighborhood in Wild Dunes with only a short walk to the beach. The beach itself was very quiet and not crowded at all which was wonderful. I would recommend renting beach chairs and umbrellas because having to take those to the beach each day would be a hassle, especially during the hot summer months. However, there was a wagon at the home which would help.
During our stay, the pool area (located right out the back door of the home) was closed due to circumstances beyond iTrip's control - apparently the pool had been closed since Memorial Day weekend per the health department. iTrip communicated this closure to us about a week before we arrived and gave us a 25% credit for the inconvenience. iTrip also communicated well during the whole process and were prompt to respond to questions we had. The only issue we had was spotty hot water throughout the week (someone did come to look at it, but it probably needs further investigation). It wasn't that big of deal, but worth noting.
Overall, this is a great home for a family - comfortable with beautiful views and well equipped for all your vacation needs.