Yes, it is very helpful!Seems like a good place to acknowledge the fellow(s) who put that site together!!!
I can't say how many times I referred to the P99 FAQs before getting my P99 and since. It is on my favorites list and sometimes I browse through it just for a refresher. I am sure a lot of thought and hard work went into that site.
Job well done, hope you are working on the PP series FAQ, the PPS and so on ......