I began using Unique Article Wizard and after some days I didn't receive any article. I began using SyndicateKahuna with the same keywords/cathegory and I have been receiving articles since 20 days ago.
The articles you will receive depend on first, what you set up and second, the available articles with the keywors you have chosen. Anyways if you want to pass as a normal blog post about 1 or 2 posts for day.