There are many open source software in the market and they can be used for different purposes.Like liferay can be used for content management but Magento must be used for eCommerce sites.
So the questions that come in the mind of the business owner is ” As it is free, is it going to be a good choice?”
I can tell you using open source can be much more beneficial than a paid software.
Go with Open Source as it also provides a support forum. You can also ask for an expert Open Source Service provider to what open source suits your business.
Tell Us what open source you are Using and tell us what problems you are facing?