I do not recommend using any text link brokers. This is for a couple reasons: 1) By using link brokers you are overpaying for links. The link broker wants to collect just as much money as the website owner gets. Over a long term this adds up to a lot of money. 2) You would be much more likely to get caught buying links. Google has been known to target link sellers/buyers using certain link brokers. This could get your website penalized or the links may just lose their PR. You would have much better success if you contact website owners directly. They will sell for lower rates and it is not as risky.
No need to use any text link brokers ...excess of every thing is bad. just make your link naturally. if you really want to buy links...then contact with site owners of relevant niche.it would be better, independent & cheap approach for you.
Link brokers are not always like as you said, brokers save your time and can build superior quality links that you can not build, because they are expert in their work. So let them handle their work.