|They are supposed to be fully functional...the ones I've seen are full versions. I haven't seen a cripple or time limited app yet.|
When you click on the "Proceed to download page" button, you get to see system requirements and a crapload of comments about the software. It's not too hard to separate the bonehead comments from those who know what they're talking about.
These programs will also reappear from time to time; often as a later version. I check in every morning to see what's offered. The only caveat is that you need to install and register the offered software during that particular day.
Most are pretty small in Mb's for fast download times, the occasional spyware content (only found 1 instance) is quickly found by the reviewers and corrected, and several hundred reviews will give you an idea if you can use the program or if another is a better choice...just like your recommendation of showbiz 2 in #2 here.