Checked in twice last week, will definitely stay here again. As MR Plat room got upgraded twice (first stay one category, second time two categories). First time received the welcome gift and took complimentary breakfast as platinum amenity - breakfast is very good compared to the other Marriott / Sheraton / Element properties in the Netherlands.
Very conveniently located, as mentioned before it's a 15mins walk from the train station (52mins from Amsterdam Schiphol Airport by train, 1h10 from Brussels Airport), though with larger suitcases I'd consider taking a local bus, many of them are driving to the hotel, for 2 stops.

Staff is very friendly and seem to really care about their clients. I'd definitely go back here in case I'll have to be in the region.