they are decent. but remember that oakley specializes in optics, not footwear.
i would suggest a pair of danner acadias, which should last you 10-15 years, perhaps longer. resoleable and very comfortable. but you pay for quality.
i also have a pair of garmonts which are very comfortable, but not resoleable.
i have a pair of oakleys and have tried the 5.11's. neither are bad, but neither are great.
i decided that i would stick with companies that specialize in boots. its also important to remember, many boots will feel great in the store and/or for the first couple months. the real test is many months down the road once they have been broken in. if they are still just as comfortable, you have a quality boot. my oakleys and 5.11's aren't nearly as comfortable as they were the first dozen or so times i wore them. my danners, after 5 years, are still my most comfortable pair of footwear. and i wear them for at least 10 hours per day, and have worn them as long as 20+ hours.