We had a group of 8 staying here, ages 20-70+. This house works great for a predominantly adult group although there is a room with three beds that could work nicely for a "kid room." Each bedroom has its own private bath plus there was a hall bath. The kitchen has everything you need, and the location was super. We either drove to Sea Pines Beach Club or rode bikes. Even though we were in a vacation home neighborhood, the spot was relatively quiet, and we really enjoyed having the pool. Please note that on Hilton Head (at least in this area), you will not be right on the beach--which was our experience in other areas in the past. However, Hilton Head Island has its own unique charms.
I would definitely rent this house again if I had a large group of predominantly adults. Some of us had to do a little work during the trip, and the layout of the house made it very comfortable to have privacy and still have space to socialize. My one quibble is that, if this were my house, I'd have a bigger table or at least a table on the pool deck as an additional eating area. We were able to make due with the existing table plus the bar stools, but it would be nice to have room for all around the same table.
Overall, I heartily recommend this house!