Lahaina shores isn't for people who want to stay at the Hyatt, it wasn't meant to be.
The rooms are nearly all different due to the fact that they are individually owned and the decoration is up to the owner. Because of this, online reviews can be vastly different, and you could easily get the wrong impression!
We stayed in the penthouse unit. It was graced with granite countertops, tile floor throughout, luxury bath/shower in the bedroom and an additional bath/shower in the main hallway. The kitchen is full service (huge cost savings with a grocery store very nearby) with all new appliances as of January 07. The 50" plasma TV was great for a late night movie. The view from the Lanai (facing the mountains) was just awesome, and the sunrise takes your breath away. The Lanai (porch, for us mainlanders!) by itself was larger than the suite we stayed in at the Hyatt Regency the week before! The owner has some outdoor games, rafts and even some basic snorkel gear available for the tenants of this unit. Since Lahaina shores is easily the tallest building in Lahaina, the view from the penthouse unit is unobstructed.
The town of Lahaina is within easy walking distance, even for the older traveler, and offers plenty of reasonably priced dining, as well as unreasonably price offerings for those who like to throw money at things (seems to be a lot of those in Hawaii). Lahaina shores has a protected, but small beach that is clean and perfect for sunning. The water just off the beach is quite warm due to its shallow nature and protected sea wall. A quick swim offshore with my snorkel gear revealed beautiful butterfly fish, tobys and pufferfish - even a decent sized eel! (this is way beyond where you would swim if you weren’t snorkeling) There are a lot of smooth stones in the water, so water shoes are recommended. Because it is protected from the waves, it is calm (almost glass calm) 90% of the time, and is perfect for floating leisurely on a raft. There is a small pool and hot tub as well.
There is also an activity service. The penthouse has protected, indoor parking available for a few dollars a day in the adjacent building. The staff was very, very nice. There were no issues of cleanliness or critters. Renovation was complete when we went in January, and the hotel is beautiful. Kaanapali is a short drive up the beach, not more than 10 minutes.