The Onsight Arc is a great rope. I've taken what I thought should be a hard fall on it, and surprisingly it was a super soft catch. it seems to coil nicely, and doesn't get tangled up in my belay devices. Although, i will say when i first started on this rope, I was using an old ATC, and it slipped a bit. But no prob. I use an ATC guide now, and sometimes the XP, and it holds just fine. I've also run it over some pretty coarse granite, thinking i really tore the rope up, but after close inspection, I realized the Perdure coating really held the rope up well.
This rope also slides through biners smoothly, is light weight, and clips easily.
The ONLY regret I have, is that I didn't fork out the extra $$ and get a 70m rope. Um... also feels a tad bit bouncy on rappells, but maybe that's just how it's supposed to feel.
OH, one more thing!! the color on here looks off. My rope is a bit darker than the pic, more of a deeper burgundy red - not orangish.
BTW, this site has AWESOME customer service!!! Love doing business with them!