Well, it picked out Joe Swash as winner so it can't be all bad. However, it's performance in getting the rest in order was terrible.
The total number of votes was statistically significant and pretty good (more than most political polls).
I think it demonstrates how important the edit is in reality shows and that online polls are a dangerous way to make decisions. The SCD poll below and the X Factor polls on this website confirm this. The edit in IACGMOOH and Big Brother is especially crucial.
They are certainly a consideration but don't use polls alone to make your mind up. Watching changes in polls in better though, as this gives youy an idea of momentum e.g. Diana Vickers poll numbers were static after her illness.