Even though I hated the demo I have started playing SWRC and it is a tiny game like so many new games, but its kind of fun too.
I think the problem with the demo is that it starts you out on the last level and so it was too much, too soon for me, but the actual game introduces concepts like planting mines gradually, and actually explains things on the first level, like the numbers above your squad-mate's icons aren't their health levels, but instead their unit designation.
Extremely linear and I can't see any reason for replay, but I am having fun.