From what I've heard, the RHA and Yamaha's has very similar sound, but the RHA's have better comfort especially if you have narrow ear canals, a volume remote, and costs less. I went with the RHA's along with the GR07-BE, Westone 3's, and Klipsch X10's, which will all be arriving tomorrow. I'll update this weekend on how they all compare to each other, as I will be only keeping one of them.
I have been cross shopping those. Unfortunately the GR07 is way to expensive. The Yamaha and RHA's are within 10 dollars of eachother