For what it's worth here's my 2 cents- I've had Specialized Carobn shoes for about 3+ years now. I put in Superfeet (the blue one) to help with arch support (took out Specialized insole first).

I cycle with Look imitation cleats - from Performance bike. You can get cleat covers for them which I have and use whenever I have to get off the bike for a break (as in walk) and when I've forgotten something in the house (we have hardwood floors so the covers work great). If you are diligent about putting the covers on as soon as you are off the bike, you will save your cleats and it will be much easier for you to walk around. I've had to walk some good distances in them- no harm done.

I also wear wool socks in my shoes. These won't sweat when your feet get hot. Yes, I've done many a century in these shoes and wouldn't wear any other brand!