According to ESRB, this game contains: Blood, Violence
Parents shouldn't worry too much. When the camera is zoomed out everything is far too small to see any details, and the violence is pretty lightweight stuff to begin with. There is some blood, but it's by-the-numbers, and never gets very graphic. There are no instances of sexual situations or questionable language.
Curious gamers might want to check it out just to see something that's unlike the majority of console offerings. Of course, I'd imagine there are many better examples of the genre on PC, but if you're console-only it might be worth a rent.
Real-time strategy (RTS) fans—I may not know a lot about what makes your genre great, but my guess is that if I found the game to be too simple to satisfy, you probably will too.
Deaf and Hard of Hearing gamers will have no problems. There are no significant auditory cues and text subtitles are available for all dialogue.