I have only stayed there once, and found the butler pretty useless. He made a big song and dance about the fact that I should contact him when I needed anything, and he would be happy to do it himself or to arrange it for me. I asked him for some shopping information for Dubai, and what he came up with was useless and irrelevant - I was able to get more useful information spending 5 mniutes online. There were also some problems trying to connect my laptop to the internet, and he promised he would sort it out. After a couple of hours of reminders, he eventually brought someone who wasn't able to sort it out. Very unimpressive, and consistent with my whole experience at that hotel.