Was working, then stopped, then started again

Worked fine for a couple of weeks, seemed a really useful plugin. Then it just stopped, for no particular reason. I originally rated it one star for that reason, but then it started working again for no particular reason, and is now automatically tweeting blog posts at the times I’ve set it to. Fingers crossed it continues to do so. If it does I may come back and nudge the rating up to 4 or 5, because when it works this is a handy social media plugin. Equally, if it returns to malfunctioning I might pop back and shade it down to 2 or 1 again. But for now, all is good.