The plus pack gives you some additional imaging features, although that's at extra cost, which is a shame really as they should include it as part of the package, don't forget Acronis also does many other things I've listed in terms of standard backups, I've just listed the new features.
When you say cheaper alternatives, do you mean non cloud? Or if you mean cloud, what alternatives do you mean? Obviously their cloud would be in addition to the local backup.
I'm looking in to cloud based services as at the moment I have a very good local backup policy, with a server running RAID mirroring what's on my laptop, but if my house goes up in flames I lose everything from the last 10 years
It's going to take an age to upload it all, but once it's there I only need to copy over the new stuff.