It seems most of the reviews for New Sushi Island are pretty poor but my boyfriend and I have never encountered any of the problems others have listed below.
We have been semi-regulars for quite sometime and this is because the food is decently priced and good, the service is usually great, the atmosphere is okay depending on how busy it is. When we were going more often the waiter remembered us and that was quite nice.
My favourite menu item is the enoki beef rolls, mm.