I tried to use it on Mariner last year. Could only get connected once, and the IT staff was no help. The speed was very slow and the hot spots are randomly placed through out the ship. The connections in the internet cafe are slow as well. Have to remember the connection is via satellite, so forget the fast speeds we have become used to on land. Great to check you email, quick blog update or send a digital postcard or two, but forget uploading your pictures or downloading a file of any size.