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#21
The EaseUS free version is not a trial or limited. The paid version may have some additional features that you likely would not need.
I haven't read of any issues with a USB drive with either EaseUS or Macrium.
There is nothing wrong with using both in an alternating fashion--EaseUS this month and Macrium next month. That way, you are not out of luck if one of them gives you a problem.
The important thing is to confirm that your so-called recovery disk actually boots and will show all your partitions and your desired image file.