Windows 7: Looking for a good way to mirror + backup personal files

Re: the differences: Macrium gives you much more flexibility in terms of the choice of partitions to select for imaging and what partition to reimage to.

Windows imaging is more rigid. It will want to reimage to a partition structure exactly the same as what was imaged.
I find it a good turnkey for imaging your OS (inc system reserved if you have one). You can image other partitions but you cannot reimage without including the OS partition.-----------> less flexible.

Although I predominately use Windows imaging the experience here is that some people seem to have more problems with it than Macrium.

This has already been answered but I'll throw my two cents in. Using both is mostly about have as many backup plans as possible. Repairing a computer can be like a game of chess, and when it comes to chess, having as many different stategies as possible is always a good thing. If one fails, you always have the other plan to use.