I like my Looks, though cleat wear is a bit of an issue. Shimano SPD-SL road cleats wear a little slower. The systems are similar, though Look offers more float options (fixed, 4.5%, or 9%) (Shimano's float is something like 6% or fixed). A lot of people like Speedplays b/c they are 2-sided. But the cleats require even more care, and you should use cleat covers if you are going to walk in them at all, especially in the dirt.