Yes, I have heard the 0.7s. They are what you would expect really, a very slightly scaled down version of the 1.7s. I thought they were much better than my first pair of Maggies ( the MG12) which were about the same size. I would still been listening to my MG12s if I had not been pressured to sell them to a work colleague when I left Malawi.
One big advantage of the pair listed: no Colin required!