The heist itself is just awesome to watch unfold. The music and score is great as well as it really fits the theme of a heist and is just great. It's pretty crazy how they managed to make each character memorable when there are 13 characters integral to the plot. Each character is unique and has its own personality and caricatures. George Clooney, Brad Pitt, Matt Damon, Andy Garcia and Julia Roberts along with everyone else all bring everything to the table. The directing style of Steven Soderbergh makes nothing ever drags as you are always in the moment and excited to see what happens next.
It's the best edited film I've ever seen and its fast pace is always on point. Ocean's 11, in my opinion, is a masterpiece.