Had a very quick overnight stay here recently as well. Did not use any services other than the room itself, so can't comment on them.
The shuttle bus from AMS runs every 40min from stop C13, which lacks any signage to that effect. I had to call the hotel to find out about where and when to wait. It took about 20min to the hotel with evening traffic. At 6am the next morning, only 11min to get back to the airport.
Check-in was a breeze and the agent offered both 1000 Titanium welcome points and an extra 750 points when I mentioned that I wouldn't have time for the breakfast included in my rate. The points posted quickly.
I got a standard king room which had nice modern decor and was otherwise completely unremarkable.
For €90, I'd stay again. Sheraton or Hilton AMS would have been much more convenient but were 3x the price.