i may have to watch for the ppx. love the ppq.
If you love the (excellent) PPQ, you probably won't be drawn to the PPX.
It will serve as Walther's "budget" semiautomatic centerfire pistol, akin to S&W's Sigma/SD-series, SIG's P250, or Ruger's P95. I doubt it will do anything the P99/PPQ doesn't already do better.