MyArticleNetwork vs. Linkvana

[intellect22]

Hey everyone,
So MyArticleNetwork just launched and I have heard good things about it but just wanted to get some feedback before jumping in....

I am trying to decide if I should go with MyArticleNetwork or Linkvana...obvioulsy one is much more expensive than the other but besides the cost can anyone shed some light as to which one would work better for getting niche sites ranked well (keyword research aside)?

The one thing about MyArticleNetwork that bothers is me is that they don't tell you the niches/sites that are available so you have no idea if after spending the time to put an article in the system, it is even going to get published in the network. The reason for that is becuase your articles have to get approved by the actual site owners, which means 99% of the time that they have to go along with the niche/theme of the owners website. This could cause problems when trying to get ranked for untapped/obscure niches. With Linkvana you don't have that issue (from what I have read anyway).

Any advice?

Thanks,

Kevin B.