Hey blondy! Thanks!
Hard, as in you will sweat your butt off, YES!
Hard, as in the steps, and actually doing it, NO!
It's been the least intimidating class I have ever taken, as far as there being women of all shapes, sizes, ages (literally from young child to grandmothers), there. You can do things at your own pace and really modify it to what you can handle as far as level of intensity and how full out you do it. The moves are simple enough that you pick them up quickly, but also involved enough that it keeps you interested... and it really is a ton of fun!!
I have a lot of dance experience in my background, but I go with a friend who has none and frequently talks about how uncoordinated and how little rhythm she has, and we both do just fine with it. So it's really for anyone. I took a relative one night for the first time and she picked right up on most of it. I have never tried the videos or wii game, but may be a good place to start if you want to try without going to a class. I seem to do better in class with a room full of people, like I don't want to be the slacker so I push myself, even though I know no one could care less about what I am doing LOL
My stamina in the 6 weeks I have been going regularly, even at only once a week, has very noticeably improved and you burn a ton of calories!
But it's make me happy to finally start doing something for my body. I just hope that I will not quit! 
