I was not originally a fan of Uggs when they first became popular in the early 2000s, but now that I live in the Midwest and therefore a colder, winter environment, shoes like these are almost a necessity.  The Roslynn boots are a wonderful alternative to the Classic version (which I also own and like very much).  I think of them as more of the "grown up" Uggs.  The zippers are made of quality material.  The interior fur lining feels a thousand times more luxurious and full than the original boot.  Also, the suede itself feels superior.  Yes, these cost more than the originals, but are well worth your money.  Just make sure to properly weatherproof these babies and you will have them to use for many seasons!