I've enjoyed fiddling around with my Windows phone but I always go back to my iPhone because using the Windows phone does feel a little different than using the iPhone.
There is an article or a series of articles on Microsoft’s website to help you figure out how to make that transition. The differences are small, it is still a web browser, you still run applications and you still store information about contacts and appointments and you still send emails pretty much the same way but the interface feels different.
You can check out our website which has a link to Microsoft’s series of articles on transferring from Apple’s iPhone to a modern Windows 8 phone.
Compare iPhone and Windows Phone.