I stayed here twice in the last month and had a positive experience both times although my Marriott points haven't been posted for some reason so i'm awaiting credit for those which I have applied for via the Marriott website.

I was upgraded to a Jr. Suite on both occasions. It had a huge walk-in closet and two bathrooms - both with standup showers.

The rooftop lounge where breakfast is served is great and has a spectacular view of the Port and Mount Vesuvius Volcano. Bar off the lobby was nice but the bartender wasn't overly friendly. Front desk staff were very friendly and helpful in suggesting nearby restaurants. Hottub area was small and only limited number of outdoor deck loungers but very clean and comfortable.

It's well-situated near the center of town with lots of interesting things to see within walking distance. Taxis are 25 euros from hotel to the airport. I would stay there again.