Despite what AndrewH tells you (and trust me, he will, on ANY thread that we come up in!) we're decent guys, you'll have no issue getting any genuine warranty covered and we sell amazing products
Just sharing my experience, which is what the OP was after (and I am far from from alone in the 'broken Yeti swingarm club', I still believe that version is a flawed design) To be fair, when it is working it does ride very well.
However, I also pop up to say that I have had great experiances with Marin, Magura, Cotic, Middleburn, Trek, and Wiggle, all above and beyond the call of duty and will recomend them whenever I get chance. I will avoid at all costs Pace and CRC.
Lots of positives there, I'm not just being negative
I have 3 stories of Trek being very helpful (twice to me and once to my mate if the OP wants to hear good news about them? And as I said, I don't even own a Trek, but will certainly consider one next time)