The most accurate "Service Pistol" I have ever fired is the Walther P88
The 4 different examples I have had the pleasure of taking to the firing line were all exceptional performers and out grouped every other production 9MM I have ever handled. (I added Nills to mine)
Even as we extend our look into the various Master Shops. Performance Centers and Custom Shops of he various manufacturers, the P88 is still quite impressive.
Now I know that on it's price alone many folks rule it out as a "Service Pistol" but that is what it was designed to be.