They are the same as every other "good" hunting scope. Everything that I stated about Leupold applies to Swarovski as well.
People need to realize that "normal" hunting scopes are made for the average hunter. The average Hunter only cares about "glass" and "features", only shoots 20-30 rounds a year from a bench, does not understand nor know how to test things like zero retention, tracking, return to zero, etc. Hunting scopes are made for normal "abuse"- i.e. From a padded safe to a padded rifle case, to a padded truck seat, out of the padded case into a padded shooting blind, back to the padded case, padded seat, padded safe.
People will scoff at this as they always do saying that their "insert _____ scope" has never had a problem. Start asking about things like round counts, zeroing, how they check zero, how they're dialing if the do, target size, hit rates, etc. and you get blank stares. I've killed a lot of animals with every scope mentioned thus far, and I've also had misses or shots that were off with no explanation..... That is until I started testing them.
People will miss a target or a deer at 300-500 yards and just assume that "things happen". Never knowing that 10-15% of the time that they adjust their CDS, their erector system hangs and causes incorrect tracking, etc.
Look at scopes that were built for contracts or places where they were actually tested for zero retention and correct functioning- they all share commonality. The Swarovski X5 versus Z5 is one example.