While I have not had any interaction with this developer or used their products, I would suggest caution, especially if you are considering any of their fee based products.
On visiting their website, the extent of information available for this product is what is in the MacUpdate description. The total amount of infor for their paid products is little more. The only support they offer is via a single e-mail address.
There is nothing about the developer, or the company on its website, other than the single email address. There is no FAQ, or indication of where they are located. There is no way of reporting issues, or any more information about their product or what it does, other than a single screenshot.
While I have no concrete reason to suggest avoiding this company/developer, the overall impression that they convey raises some 'red flags' for me and as such I would suggest being a bit wary when doing business with this developer/company until their actions prove otherwise.