Gets the jobs done, just not well.
I must agree with most of the other reviews. This carabiner is just not worth it. While it may be a "deal" compared to some others from say BD or Petzl it is not worth the hassle. When loaded the sleeve is a pain to undo, and in addition the sleeve takes many more turns than other carabiners to lock. While that is a horrible thing it is just an unnecessary inconvenience in my mind.
I would reccomend that you look at the BD Positron/Rocklock or the Petzl Attache.