5 Star ratings are over used IMHO
..but these bad boys truly deserve it. They really are a joy to use, the gate action is so smooth and the biner is so nice and light, but it also feels strong and reliable. I have owned a few of the screw gates for a few years now (they are my de-facto biner for anchors). I have only just ordered a locksafe one now so comment on that one but the screwgates at $13.90 are good value I would say, based on the quality of the product.
If people are wondering what the difference is between the Zodiac and the Shadows, the Zodiac is slightly bigger, a bit heavier and a bit stronger (32Kn major axis versus 24Kn on the Shadows per Backcountry specs). The two are very similar and the size differential is not that noticeable, both are excellent and you can decide which one is more suitable for your own use but I think both of them are top of their game.