I've managed to find a lot of info on this subject here. I will ditto Docs findings too. My P07 needed considerable work and still is not as nice as my wife's P07 is OOB. I've resisted buying parts, but probably will resort to that. The DA has improved significantly, but the SA is still not as nice as I'd like. I believe it's a sear problem, but I can live with it for now. I've heard the SA can be better when converted from decocker to safety operation, but haven't tried it.
This forum has been a Godsend in giving me the knowledge and confidence to disassemble, and familiarize myself with the inner workings of my pistol. My P07 is a marvelous defensive pistol and still fun to shoot, even though I think it can be better. It has also helped that I've put about 3000 rounds through it. Keep throwing lead !