how much a month is it? is it worth paying for it
I used it when we were still trying to grow fast. Yes, definitely worth it but, like anything, you need to consider exactly what you're doing.
Start with a low weekly budget and see how much you spend and what the effect is. Ask every single customer who phones where they heard about you so you can see how many leads you get. Keep accurate records of cost per customer.
It was the cheapest customer generation method we used in 2011/12, by far. Like anything, to make a success of it, you do have to work at it.
Vin