We had an amazing stay at Mark's penthouse. We traveled with an infant and Mark made sure we felt right at home. We had a crib and a high chair to use during our stay, and that was fantastic. Mark was always quick to answer any questions we had. The views from the huge wraparound balcony are spectacular! The bathrooms are newly remodeled and the air conditioning was just replaced. We would certainly recommend this place to anyone looking to stay in Waikiki.