Having been using sky demon recently in Europe and this week on a trip to Liverpool I can say its extremely helpful with vrps at non familiar airfields.
I think PocketFMS was the first system to have VFP's included in the database (and for all of Europe). But noadays I think all the major systems have them included.
Having them available onscreen certainly makes life a lot easier.
The trick these days is not so much in having the VRPs in the database (and up to date...which some systems still aren't so good at) but how quickly you can add them to your route without losing your plan, when you're in a busy phase of flight.
dp