My road bike has Look clipless pedals.
My MTB has Shimano SPD clipless pedals.
My commuter wears nice fat platforms with aggressive little pins for grip.

Clipping in and out at every intersection in tight urban traffic is an annoying pain in the backside, and more than a little dangerous. Clunking around in bicycle shoes while stopped for simple errands on the way home is uncomfortable and makes people stare.

The best advice is to give 'em a try for yourself. If they work for you and your particular commute and style, then enjoy. If not, post 'em on Craigslist, recover most of your money, and consider it an inexpensive learning experience. Either way, you win.