I also recently stayed here and had a very pleasant experience. Staff was great and they seemed very excited to be apart of Marriott. We were even offered breakfast as a welcome gift option (vs points) as a gold member. The breakfast was great, a robust buffet with delicious options. Upon arrival into our room we were also given drink vouchers for the bar. Overall lovely, the only thing I found a bit annoying was that the airport shuttle ran every 30 minutes, would've preferred every 15 minutes but the shuttle was a bigger bus so makes some sense. The room was great, we didn't get upgraded to any of the enhanced views, but it was sizeable. The shower in our room did not have a door, so it did make for a very wet floor.

Overall a fantastic stay, if the rates continue to be as good as when we booked it I think it'll be my default hotel for AMS.