Hi there
Macrium does work brilliantly as most people on these forums will readily testify to.
The argument about Free Software doesn't really apply since if the Pro features bring extra wanted features to the table then people will buy it. Having a decent Free product also allows a lot more people to test the basic functionality so the pro version can be rolled out as a solid stable release. There's nothing wrong in using the free version if the features it supplies are the only thing you need especially to users who don't use Windows every day and just need to take the occasional Windows OS system image.
For example I see for myself no interest in differential / incremental backups, VIboot, encryption, data backup etc so there's no reason for me to go for the paid version -- others really do find these features useful and the paid version is 100% worth it for them. Data backup, Data recovery , Disk cloning etc I use Linux for. Macrium Free I simply use for Windows imaging. cloning, and restoring while on a Windows Host system.
Lots of paid for products are developed on the back of Free software - and the developers haven't gone bust.
What I hate though are hobbled things - like video converters etc which only allow you to convert 2 mins of video, reduced quality and with watermarks all over the place. A Free version should have the basic functionality and allow full use of those functions like Macrium Free V7 (and I gather from the V8 version too).
Cheers
jimbo