Magento is powerful open source platform for online stores. With the use of magento one can control more than one websites or online store with one administration penal..
Magento is powerful but extremely slow, hard to learn beginners. Magento has awesome features like multiple stores, multiple design and some other.
Magento is resource intensive and requires a fair bit of knowledge to modify. The up-side is the power it possesses including the ability to run hundreds of retail shops from a single user installation! I've used it this whole year for multiple shops and been extremely pleased.
Regretfully, I must admit that the work from NeoNexus Corp. with Magento has not been completed as was agreed to in writing and we have chosen to close down that project and go a different way. The funny part is they continue to state online how they have never lost a web client. This is certainly one they lost!