We just put some on our covered patio. My wife picked out a few tables, rockers, and a glider. I will say that the build and look are very nice. They are pricey but are supposed to last much longer than traditional wicker. We are very happy with our choice.
I have anecdotal, second-hand info. My friends purchased some. They were georgeous to look at but absolutely unacceptable for outdoor use. They had them one season and had to return them because they started to deteriorate way too quickly. They were sure pretty, tho.