In a few short years ZORIN OS has gone from an obscure Linux based operating system to an OS that can realistically compete with any other computer system on the market including Windows 7.
Currently ranked #29 on distrowatch.com ZORIN should be in the top ten. Not yet, but it is moving on up.
Their new website should provide all the information you need to get started including free and premium versions of this operating system. For new Linux users I recommend installing alongside your Windows system and try both to see what works for you. If you choose to, you can delete this and go back to Windows. Be sure to continually check the support forum for any updates, both here and on Zorin.