I do not have the P99; however I bought the P99CAS due to it’s smaller size. It also has inherently amazing accuracy and after many rounds I can truly state it is thus far within the same reliability category as my Glocks.
Whether it is worth it to you for the smaller size depends on how you intend to use it but, I certainly believe it well worth the amount I paid because I can easily utilize it in the form of an inside-the-pocket weapon. I enjoyed my first P99C so well I purchased a second. A reason for the second purchase was: I really like the AS trigger system and Shipwreck can tell you it is no longer being imported . . . So I decided, I can always put another to good use and wanted to get an extra anyway before the “AS” availability is extinguished..
FYI - CDNN had the P99CASs (and may still have some in inventory) for a neat price of $429.99 + $9.99 shipping + $2.99 adult signature requirement?? to your FFL - Of course your FFL will add charges (i.e., transfer fee, background and taxes, as applicable) - To me an exceptional price for this very high quality. If you contact CDNN, deal with whomever you wish but - - - - FYI - I have always asked for (and ordered from) Jerry, as he is a great guy to deal with who tells it like it is, has consistently selected well for me whether new or used and has as well described each scratch in detail prior to order finalization.