The 700 is a nice upgrade from the 659 and you can still simply use any rechargeable AA batteries without needing to use the USB cable. I get the feeling the One is getting discontinued so the prices are starting to drop considerably.

Another option to the 700 is the URC R50 although it sounds like it is harder to program.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70