Reviews overview
This is what other customers say:
Takes a bit of time to get used to, but it does the two main tricks that it is supposed to perform: pulling yourself closer to the anchor is smooth (assuming you have a foothold), and importantly, releasing under tension works well too. I am happy with the product.
The eye on the end that connects to belay loop is just minimal size, if you want to use a very large carabiner, it will be tricky to get it attached or unattached. But once on, it stays on tight.