Installed client only (Doing a major upgrade in the new year) and must say I am very impressed on first impressions.
SimStarter does not work so I loaded from the Prepar3d GUI and can confirm that load times most definitely seem faster. VSync off,Triple Buffering off and frames unlimited and I was holding a steady 40fps on my mid range system and it seemed smoother.
This is with Orbx FTX England coupled with UK2000 Leeds Bradford in the Just Flight Piper Warrior.
This point update arrived perfectly for me as I was just beginning to lean towards XPlane 11 but I have a huge investment in Prepar3d with add ons so it has breathed new life for me and to cap it off, venturing into Vatsim as well...
I can confirm SimStarter does not work but all UK2000 and ORBX do.
Hope this helps