Possible Disadvantages compared to the 7 series: No pre-record, no digital in, no hold button. No internal dual media recording (not an option on 702 so a wash there). Media size so far limited to 32GB (but 512 to be supported?). No time code generator (not relevant to what we do though)
Advantages over the 7 series: smaller size, better powering options , better preamps?
Questions to be answered: A/D quality, metering, limter utility