I think what really makes it stand out is that it's really secure. I read so many reviews on other harnesses that the cats would escape immediately. We go on walks in wooded trails far from our home, and I'm terrified that he'll get loose and we'll never be able to find him again. I don't worry with this. He has escaped, but only once, and that was a rather extreme circumstance. We were on a path that crossed a street, and right as we got across and were still right by the road, a bus came roaring by. I should have heard it coming and picked him up in time, but I didn't and he FREAKED. I don't blame him, it startled even me. But when I went to grab him he was so upset he twisted so much he somehow got lose. Still don't get how. But that was once out of tons of walks with a very, very freaked out cat.
I would recommend checking in a safe place that your cat doesn't just automatically freak out when on a leash, but as long as it's not really extreme, there's no worry. He usually doesn't pull, but the few times he's been tempted by a squirrel or something and jerked after it there hasn't been a problem at all, or when we've headed back to the parking lot and a car will pull out (but not close enough to freak - we've learned and pick him up at the end) and he will turn around and sprint down the path the other way, it still holds, even though he's running fast. Even when he jumped off an edge and we didn't jump off after him quite quick enough so he sort of hung there for a sec (poor thing!), the harness held fine.