The Trex Yacht Club Rocker Set is not only totally weatherproof, but also gorgeous.  Assembly is made easy by the included stainless hardware and handy assembly tools.  We found the Rockers to be of more generous proportions than many other similar looking products.  Our daughter's family has had quite a number of furniture pieces made by this company for many years and they look as good as they did the day they arrived.  Assembly is particularly easy if you use the included driver bit in your driver/drill.  

Pros: Nice large size, weatherproof material, quality design, weight that won't blow away in a storm, great color selection
Cons: None that we found