I used ATACs for several years and just switched to clip/strap for general riding around (which is pretty much everything here). It's really easy since there's no hills to deal with. I'm really enjoying not having to carry a second pair of shoes.

A lot of the reason for the switch was the sidi's I got. I really hated walking around in them.

Just remember to be careful when swaping pedals. Always clean both sets of threads and re-grease. I've stripped threads before while trying to do a quik swap.