No, don't invest yet if you are not sure about that site. You must do research about that site first before investing and you will be able to avoid losing money because of not doing research about a site that you want to invest. In short, you must know what you are about to invest before investing in it.
I guess asking the question about what we think of the site is part of the OP research medium. But the site is not a big name so it's would be hard to get much substantial in depth insight about the very sight. He still has the option of going through the internet