Hey folks,
Sam here from Horizon DataSys (the developers of RollBack Rx)!
I just wanted to chime in here to clarify some things. First, RollBack Rx and Macrium Reflect are not really competitors, more like companions. Macrium is a great backup solution. RollBack Rx utilizes snapshot technology. They're not to be used one over the other I would say, more in conjuction with each other.
If you're doing something like testing software and installing things, or visiting some shady websites, or downloading iffy files, then RollBack Rx would be great for its speed here. You would just take a few seconds to select a previous snapshot and go back to it. Problem over!
If you want any info or want to try out the software a bit, let me know. I'm glad to help.
Cheers!