I have the Shimano A-530s. They work, but I am not a huge fan. They seem to require maintenance more often than the pedals on some of my other bikes, and are a bit of a pain to work on. I use them ~80% with SPD shoes, and 20% with street shoes, they are comfortable either way. The set on my commute bike have 6,000 miles on them, I was getting a clicking sound out of one of them after ~5000 miles and opened them both up, cleaned and re-lubed them. I have another pair that also required cleaning and relube, but I don't remember how many miles they had on them.