My family and I have stayed at Marriott's Waiohai Beach Club twice before and decided to try the Kaua'i Lagoons property this time. If this is your first trip to Kaua'i (or Hawaii for that matter!), you would be much better off at a resort with piped in Hawaiian music, tons of resort activities, a nice long beach and several dining options. If you've already been to Kaua'i, however, know what you want to see/do/eat, are planning to rent a car, and prefer a quiet, comfortable getaway to a crowded resort, then I'd strongly recommend staying here.
Marriott's Kaua'i Lagoons was originally built as private condominiums but, released in the middle of a down economy, Marriott picked up the property and converted it into a timeshare. The property therefore has some permanent residents, but most are vacationers. There are unfinished Ritz Carlton residences across the way and lots of open grassland where housing plots were planned for but never developed.
The property is surrounded by a beautiful golf course, which is great for morning walks (if you're like me and not a golfer!). The pool has a slide, which my niece loved. It's fairly small, though, so book at Marriott's Kaua'i Beach Club (which is down the street) if you prefer a resort style pool. There is also no direct access to the beach. If you take a short hike around the property and down a dusty slope, you can get to a small secluded beach. Again, if you prefer long sandy beaches, Marriott's Beach Club down the street has direct access to a nice large beach.
There are no restaurants or shops at this property, but Marriott runs a shuttle between the Kaua'i Beach Club, the golf club and Kaua'i Lagoons. We took the free shuttle down to the Beach Club - it takes 5 minutes and comes whenever you call for it. We then spent an afternoon hanging out on the beach and walking through the shops. There are several restaurants at the Beach Club, and you can charge the meal back to your room at Kaua'i Lagoons.
We had an ocean view, which was absolutely stunning. We also had a car and knew exactly where we wanted to go, where to eat, where to shop, etc. It was nice to be somewhat secluded and in a small, private development, rather than in a large noisy resort. There are only four buildings, each with four stories.
The fitness center is fairly large compared to the size of the property. The treadmills and other machines have a nice ocean view.
My sister stayed in a three-bedroom villa, which was over 1,600 square feet! Our 2-bedroom was over 1,100 square feet. Kitchens and amenities were all 5-star. We used the outdoor BBQs a couple times, too.
The location was great - we were in between Waimea Canyon and Tunnels Beach, close to the Lihue airport and close to several shops and restaurants.
Definitely recommend this place and hope to come back and stay here again.