I lost a couple of thousand dollars using their services (literally 5x my ad budget) because they "refill" your ad account based on the ceiling you intend to spend - without an email notification or other notification in your main profile. It cycled through my ~$300 ad budget and charged me that amount multiple times before I caught it on my bill. Never received the refund they said they'd send either.

People say that half of all advertising dollars are wasted, you just don't know which half, but this company has perfected it to 5-10x what you mean to spend on advertising is wasted, and you don't know until they've taken it from you and then shown you the fine print.

In short, avoid.