Krzysztof was very responsive and relatively flexible with check-in, allowing us to get into the apartment an hour early. The Illikai, a hotel/condo hybrid, has a bell hop desk that will check your bags for $1 a piece, so we were able to drop our luggage off and get lunch. The building is a great location next to the Hilton Village, with easy access to lagoon and beach, and its own pool with towel service (though no umbrellas at lounge chairs).
The apartment itself is nicely done with a beautiful view from the deck. We were greeted by a much-appreciated welcome package of drinks and snacks. Furniture is comfortable (can't speak for the fold-out couch) and clean. All the basic equipment is provided to cook and make use of the kitchen, though only an electric stove and microwave, no oven. Some basic condiments may be leftover from prior guests, and for shopping there are the ABC stores across the street or a Food Pantry store 5 minutes farther with slightly more selection.
Bath and beach towels were provided, and the beach supplies (beach umbrella, mats, and boogie boards) were extremely welcome for drop-in beach-goers. Essentials were provided, though the soap/shampoo dispenser had its labels swapped and the jug of conditioner was empty upon arrival. Laundry machine is not provided, rather there is access to coin-operated machines just down the hall which we did not make use of.

Other perks include the weekly fireworks show at the Hilton we experienced on Thursday and Friday evenings, a hula show at the Illikai, and plenty of shops in the building's lobby. While Waikiki beach is very nice, you can a just as nice but much less crowded beach by walking to the Magic Island lagoon (visible from the deck on the other side of the marina). Overall an ideal condo-stay with a beautiful view.