We traveled with our 2 tween sons and the Lihue condo worked really well for us. With the 2 bedrooms and sofa bed everyone had their own space. The condo was clean and had everything we needed (including a bunch of beach stuff we didn't know we needed). Ocean views are spectacular, central location makes touring easy, and Lydgate park is right next door.
However, the two bedrooms are not equivalent so I would not advise staying here with 2 couples thinking it is a "2 master bedroom" situation. The upstairs bedroom is spacious with gorgeous ocean view and a wall of louvered windows to bring in the ocean breeze. The adjacent bathroom is also spacious and recently updated. The downstairs bedroom is much smaller, with a small, dated bathroom (clean, but definitely meh) and limited airflow. It got rather hot down there, even with 2 portable fans and the ceiling fan running nonstop. With the single window open we could hear people talking outside the laundromat (vs ocean sounds in the room upstairs). Not necessarily a deal breaker, but definitely something to consider based on who you are traveling with.