I have the Shimano A530's on my commuter bike (the bike in my stable that gets the most consistent use, and most miles). I use the SPD side most of the time when commuting, which for me is 16 miles round trip per day, and tend to use the platform side when riding down the street to buy a tub of ice cream or such.

Either side of the pedal works with either cleats or street shoes, and it is not a big deal to flip the pedal over after you are moving, so I wouldn't worry too much about that.

I do wish that they made a double sided pedal which had sealed bearings in it, I find that I end up cleaning and re-lubing the A530s about every 5,000 miles, which isn't terrible, but they could be better. No reason they couldn't make a pedal which lasts as long as a Chris King Headset or a Phil Wood bottom bracket between services.