You are right, my netwhistle stats for about 2 weeks do not say very much, but if I compare the stats of worldzonepro with the statistics of port5, digitalrice, kyd and also f2s, there is a BIG difference. I cannot remember a day, when I get no error message of these FWPs from netwhistle. On the other hand, I have a free webspace from a local ISP since months and no downtime mentioned from netwhistle, unfortunatley no scripts and 5 MB only, only 3 subdirectories, in other words, forget it of other reasons than downtime.
My friend is a beginner and has no idea how to make a page and I do not have the time to help him very much, so his experience won't say very much. But from time to time I will see how worldzonepro works.