It's easy enough so anyone can use it with minimal training or assistance from an IT person/team member! I have no complaints about this product at all; in fact, we would highly recommend using it if you're looking into doing your own ERP (enterprise resource planning) solution.
If you want something simple but powerful without needing tons of customizations - go for Agorasoft. Our team has been able to solve many issues by simply adding features they needed after installing our first version. We were solving problems such as how do I get my customers information automatically entered when submitting requests? How does everyone know what items need purchasing each month since there could be over 500 different products being purchased monthly?!