Having backlinks can be a good thing and get you ranked higher and help with traffic. But you need to be careful with this. Your backlinks need to be quality ones that relate to your topic and be from sites with good reputations.
You may or may not get many visitors immediately. Also if you purchase from these from the wrong place or purchase too many and put them up at once, Google will probably penalize you. Also if you trade backlinks too much Google will also penalize you.
The best way is to get your backlinks naturally by providing good content that attracts visitors to drop by and linger on your site.
Go here
http://www.loriswebs.com/linkemup.html and read what Lori has to say about getting good backlinks.
Think about it... if it sounds too good to be true it usually is. If it sounds like a reach for the pie in the sky, it's probably questionable. If it says work is involved and stuff like this usually takes some time, and then goes on to tell you how to get legit backlinks without buying or trading a bunch of them, then it might be a legit offer.
I hope this helps.
