Targeting is one of the major parts of any PPC campaign. If you target well, then the conversion rates will increase. Last month I saw Bing PPC traffic make my income a new height. Because I think, the quality of Bing traffic has been improved this year. The past year I found Bing wasn't blessing for me. But this year make it different. So I highly recommend to the new marketer to start over Bing PPC.