I have 3 PDPs a 4 and 5in compact and a PDP Pro X PMM which I am actually sitting at home waiting to arrive back from the mothership today (I have to sign for it). I like the 4in, it fits the hand well and shoots extremely well. Assuming the Pro X works properly when I get it back, it will more than likely go to the top of my PDP list. I also have a Q5 SF, two P99s and a stainless PPK/S in .380.
Walthers are all very good guns and the PDP is no slouch. I find it a bit snappy and its ergonomics could be better - I’m spoiled by the VP9’s ergos. There’s a lot of talk about the PDP’s trigger being the best in the striker fired game, but I don’t completely buy into that. It’s good, but I like the VP9’s trigger more. You can add the Walther Dynamic Trigger for app $200, but I don’t think you get $200 worth of “betterness”, whereas for a $30 spring kit from MCarbo the VP9 trigger becomes absolutely amazing.
As far as optics I have a Holosun SCS green dot on one and a CH red dot on another, with another C+H red dot on the way. Both of these optics direct mount to the pistol. The SCS is ok but it only has an auto brightness setting and IMO it is usually too bright for my liking. I really like the C+H optic, but I wish it had a green dot.
Congrats on your new addition. I don’t think you can go wrong with a PDP. They look great, shoot great and are extremely well priced. Hopefully you’ll never need it but, Walther’s Customer Service is outstanding. Let us know your thoughts when you get it to the range.