Fantastic location!
I stayed at the Marcel for 4 nights in April this year. When I arrived my booking (for a standard room) had not gone through, but the staff were very accommodating and found me a room straight away. I was then upgraded to a King room for the remaining 3 nights. The king room (6th floor) was fantastic, plenty of room, large windows, quiet.
The hotel was in a fantastic location, within walking distance of the East Village, West Village, Soho and really close to Union Square. 
Would definitely stay again, fantastic hotel!