This was done in a very short amount of time using DevExpress' XAF. Also, this CRM looks like every other CRM. That is also true. But that is the nature of CRM tools. They all look the same.
Is this hosted or clients have to host it themselves? Do you have support or tell people what they need to get this running? Im guessing a server, windows server license, a MSSQL license and Outlook licenses at the least right? Or does each person have to have his own copy of the data? And the pay with paypal link even feels wonky.
Im sorry to have to say this but this feels like a scam and if it isn't then I think you really need to focus on the design of your website and customer education.