Hi
I'm using the Music streamer HD from HRT, it's quite a nice DAC, it supports all the frequencies from 44.1to 128, and everything in between. I never heard the ODAC, I even was considering it, but for me the deal breaker was that it didn't support 88.2, which I think is a big deal.
I think the HRT MS HD is definitely worthy of consideration, very sweet sounding DAC with my Crack and HD 650.