Have experienced no problems using the Behringer with my main system in a digital only mode with a meridian 518 jitter reducer and attenuating only 80hz and below. I've been told that it may introduce phase issues, but I switch back and forth and can't tell so...
If you can tell the difference, well your ears are better than mine. I'd like to hear why though it sounds worse when used only as a digital device.
I too would prefer the Rives unit, but for $3k or so...well that is way out of my range and it's up to you to say whether it's worth it or not. But like I said, I would get one if I could afford it! For now I'll take my system, though limited to digital, for about 1/3 the price!
Vik