Here's a good review of the 9700 that's both pretty short and pretty thorough.

What I like about this review is that it also tells you what the radio can't do. For example:

• “Full duplex but cannot do crossband repeat” [3:47]
• “DPRS sends your position info […] into the APRS system via a DSTAR gateway [but it can't] do traditional APRS analog transmission or reception. [4:48]