Well I've used both and the quality difference was negligible. Any difference there was I would put down to the the balanced ins on the 1010 rather than vastly superior conversion. If the converters are different then I don't think they're that much better in the 1010. We are talking about entry level gear here, there's just isn't going to be a noticeable leap in quality for the money difference.
As far as I'm concerned you are paying extra for the box and the balanced ins/outs.
Or maybe my ears just aren't there yet?