Just leaving the airport with shuttle practically waiting for you in front of the Schiphol leaves a very good impression, and at the doesn't ask you for any payment as well leaves even better :).
But from the start, staff in general and online chat with hotel help works as a charm, I actually had some problem with my credit card and they took reservation only on my name what's not very common. Upon arrival, nice people at reception, as well as on fabulous 17th floor which gives you amazing view at the whole Amsterdam, with some nice coffee. Btw. never ate here while we've read food is expensive and we are more like street food fans who likes to try it as much cuisines as possible.
Hotel is very clean and quit with smooth music allround the hotel, fresh tulips in hotel what else :)... rooms are clean as well, not too big but still big enough for a few days. Longer stay might be a problem for somebody with the bigger cases and more clothing. Free coffee and tea in room is a nice addon, you also have ironboard in room, hairdryer etc. but no room fridge (this I don't understand why). Bed is great for sleeping, you don't want to leave it in the morning. Bathroom is spacious and comfortable and the shower is big enough for two.
However, biggest and maybe the only real remark would be, no slippers and bathrobes for guests. This is something you usually should get in hotel of this category without second thought.
There is no swimming pool in this hotel, thats a shame but did't really missed it.
Chekout was very fast without any problems and shuttle can drive you back to the airport, but return drive costs 5 euro/person which is very reasonably and you don't have to make necessary reservation.
Location, not the greatest but you have a tram that takes you directly to Dam Square in 12 minutes so no real problem there either.
We would come back and stay here again without second thought, my faincee really loved this hotel, as she says "it a class of its own" (in 4* range). But the slippers and the bathrobes should be there.
PS. there weren't any bellboys, but that didn't bother us at all.