Not sure if I have any use cases to necessitate this NS subscription, but I'm willing to consider it. What nodes, etc. does it provide? I couldn't find a a list of features.

It provides a main node monitoring data as well as some control (

                 'HONKHORN' : evHonkHorn,
                 'FLASHLIGHT' : evFlashLights,
                 'SENTRYMODE' : evSentryMode,
                 'DOORS' : evControlDoors,
                 'SUNROOF' : evControlSunroof,
                 'TRUNK' : evOpenTrunk,
                 'FRUNK' : evOpenFrunk,
                 'HOMELINK' : evHomelink,
                 'PLAYSOUND' : evPlaySound,

and 2 sub-nodes - one to control and monitor climate

                 'WINDOWS' : evWindows,
                 'SUNROOF' : evSunroof,
                 'AUTOCON' : evAutoCondition,
                 'CABINTEMP' : evSetCabinTemp,
                 'DEFROST' : evDefrostMax,   
                 'SEAT'  :evSetSeatHeat,   
                 'STEERINGW' : evSteeringWheelHeat,  

and one to control and monitor charging.

                 'CHARGEPORT' : evChargePort,
                 'CHARGECTRL' : evChargeControl,
                 'BATPERCENT' : evSetBatteryChargeLimit,
                 'CHARGEAMPS' : evSetCurrentChargeLimit,

If you have a powerShare connection a node will be added allowing monitor and control of the power (mini power wall)

                ,'BACKUP_PCT'   : setBackupPercent
                ,'OP_MODE'      : setOperatingMode
                ,'GRID_MODE'    : set_grid_mode
                ,'EV_CHRG_MODE' : set_EV_charge_reserve

Thanks for the quick reply. I'll put some thought in to what I might want/need to use it for.