Microsoft Dynamics NAV is the most popular ERP system. The current numbers stand at around a whooping 110,000 deployments. One reason could be that the NAV is not popular just in US but also in Europe. The product was actually launched in Europe, albeit it was called Navision then and it has been having a significant presence ever since. However it cannot be denied that the NAV offers a comprehensive simple and scalable solution to the midsized enterprises that justifies its immense popularity. With the Nav 2013, the implementation is quick, inexpensive and the solution allows customizations even for the quirky customers.
Microsoft claims that NAV is fast to implement, easy to configure and simple to use. You can also get help or free demo from http://www.metaphorix.co.uk/.
Oh, yes, it is!!