I've stayed at the Des Moines Marriott for about 8 weeks (Sunday-Thursday) between July - Nov 2011. The free shuttle to the airport is good and is convenient. If it rains, they will take you and pick you up at downtown offices and restaurants. The beds are comfortable and they will replace feather pillows with foam upon request. There are hair dryers and ironing boards in each room - just look in the closets. The internet is expensive at 12 a day in the rooms. Free in the lobby. The concierge lounge staff is very friendly but food lacks.
They are currently starting a remodel of their lobby (late October) not sure when it will finish.
Room Tip: Free Airport Shuttle - leaves the hotel on the hour and half hour.
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