For exercise riding near home, I use some double sided Ritchey V3 or Ritchey Comp V4 pedals. Those pedals are very similar to the M520. For that riding I always use my cycling shoes, so prefer the double sided. I had a pair of M520 but gave them to my niece. I find that the Ritchey cleats are interchangeable with Shimano.

And for errands and grocery store trips I use a bike that has platform on both sides.

So, it is mainly touring, mountain biking or winter riding when I use the M324 or A530. There were many times I would have crashed while mountain biking if I was cleated in, but I have never claimed to be a highly skilled mountain biker.