I have not used the MixPre3, but I have used both the SD722 and SD633. I think the MMA-A is equal to or better than these in my experience, but the MixPre3 is a newer machine with upgraded sound. One big advantage of the d:vice for me is the set-it-and-forget-it reliability. I have made over 100 recordings with it over the past year, never a fail so far, some of these ran over 6 hours. It would be harder, though, to do lots of level adjustments with it on the fly, at least with the Rode software I use (for 24/96 resolution). But I haven't tried to do this.