As noted above, your only Platinum amenity is the water and snack - sometimes cookies sometimes potato chips or candy bar or the like.

As for room type guarantee, keep in mind that at a Fairfield, the double rooms are a different price (usually cheaper). If you are a Plat and you book the cheaper room, then you forfeit your room type guarantee.

As for different levels of service in Courtyards vs. Fairfields, neither set the standard .