Anyone with Experience buying traffic from this site

Hi mates,
I've once used "internet traffic service dot com" and got traffic with clicks to my recent pages but I was still with blogspot then and didn't track or monitor the traffic. However, I want to try it again to boost my traffic but I need advice from experts here. What do you feel about it and any pros or cons about their service. BTW, I'm not doing affiliate or having AdSense on the blog.