Hmm, this is a discussion that we had quite often. There are many people that are quite happy with the Windows facility. But there are many others, and I am one of them, that have been screwed once too often and do not touch Windows backup or Windows imaging any more.
There is a long history since XP where backup and recovery did not work correctly and where you could not recover anything e.g. backed with XP once you moved to Windows 7. Or just think how often a system restore did not work although you had plenty of restore points.
For those reasons I now use Free Macrium and Free Paragon for imaging. The are 100% foolproof and work each time. And for backing up some data files you can just copy them to an external folder - although I image those too because I have all user data in a seperate Data Partition.