Hi David
PP works fine with ANRB, I run the two together on my machine and have done for sometime.
I use my ANRB to feed both the RB network and the PP network.
I purchased the one off payment to subscribe to the PP network and do not use the RB network for three reasons 1) cost and 2) access to download and store network data 3) ability to MLAT non positional traffic (e.g. GA MODE-S aircraft).
I therefore just use my RB to look at my local data and I use PP for the rest of the world (although I am mainly interested in UK airspace traffic which has fantastic PP coverage).
What the extract refers to below is the ability to feed the PP network with MLAT data, the SBS can do this but RB cannot due to the internals of the box (all above my head). However this does not stop you from using the MLAT feature in PP to obtain positional data for non positional Mode-S reports. Planeplotter enables all users to do this for a very small one off fee, (SBS MLAT Ground Stations that contribute MLAT for all other users data do not have to pay this one off cost).
In my opinion ANRB has a better interface than the SBS and for those that want to spend out on it, it has the network capability built in.
In my case the PP network offers a much cheaper alternative with more functionailty that I require. It's horses for courses.
I would highly recommend PP to either SBS or RB users.
PS - PP can also be used with no SBS or RB, it also interfaces with some newer alternative ADS-B revceivers that are now available.
I hope this helps if you need any more info ask away.