If you are fast, and have any hills the compact could be limiting. I'm not very fast but I often max out my 46/11 on mild descents. Even on flat ground I find I'm only one or two gears from maxing out when I have good wind and strong legs.
However, for flat commuting I find I can live in the middle of my cassette and mostly use the fd when starting/stopping, then jumping into my cruising gear.
Make sure your rd can handle the extra gearing if you switch.